Jimmy R9 Pro Smart Water Station Review – Reverse Osmosis System Countertop Water Filter with Instant Hot Water

I have previously reviewed the Jimmy H9 Pro Cordless Vacuum, and vacuums appear to be the main thing the brand Jimmy specialises in.

However, one of their most recent product launches is the Jimmy R9 Pro Smart Water Station, which is a high-spec machine that specialises in reverse osmosis water filtering, with 7-stage filtering, and it can then be used to dispense either chilled or hot water instantly.

I love the idea of an instant hot water tap, as I drink a lot of coffee and do not have the patience to wait for a kettle to boil.

The R9 Pro is an updated version of the original Jimmy R9, which launched a few months earlier. The core filtration hardware is essentially unchanged, but the Pro adds active cooling, so you now get properly chilled water on demand rather than just ambient and hot. I have been using it in my kitchen for the past few weeks, partly as a kettle replacement and partly as the supply of filtered water for my morning coffee.

Jimmy R9 Pro Reverse Osmosis Water Filter System Countertop, Cold and Instant Hot Water Dispenser, Mineralized RO Water Purifier with 7-Stage Filtration, Temperature Control, UV, TDS Monitor

• Advanced 7-Stage Filtration with Lab-Certified Purity: The JIMMY R9 PRO Reverse Osmosis Water Purifier has a high-tech filtration system that uses a very fine 0.0001 μm RO membrane and UV light to kill germs, and it It delivers proven 99%+ removal rates across critical contaminants, including lead, chlorine, nitrates, and PFAS. The system also effectively reduces heavy metals, bacteria, and viruses—delivering consistently pure, great-tasting water you can trust.
• Instant Hot, Cold & Ambient Water with Full Temperature Presets: Get perfectly tempered water in just 3 seconds. JIMMY R9 PRO Countertop Water Purifier offers 6 precise hot-water presets (45℃ / 55℃ / 65℃ / 75℃ / 85℃ / 98℃), plus cold (10–15℃) and ambient options—ideal for baby formula, tea, coffee, or daily hydration. Accurate dispensing control (120 ml / 200 ml / 300 ml / 500 ml) ensures every pour is effortless, consistent, and perfectly measured.
• Countertop Convenience, No Installation, No Hassle: Enjoy pure water instantly with our true plug-and-play countertop system—no plumbing, drilling, or installation required, saving valuable space. Featuring a 5.5 L raw water tank and 2 removable purified water pitchers, it offers ultimate flexibility. While the system continues purifying water, you can refrigerate one pitcher and carry it to the table or office—clean water is always at hand.
• Smart Touchscreen with Safety Features: Easily customize your preferred temperature and dispensing volume through the intuitive touchscreen interface. The child lock function ensures safety by preventing accidental dispensing, while the illuminated water outlet provides convenient access even in low-light conditions. Whisper-quiet heating and cooling complete the seamless, user-friendly experience.
• Long-Life Filters for Lower Costs and Less Waste: The JIMMY R9 Pro RO Water Filtration System's durable filtration system features 12-month pre-filters (M2S and Q2S, 3,000-bottle capacity each) and a 24-month RO membrane (RO2.0S, 7,000-bottle capacity), dramatically reducing maintenance frequency, costs, and plastic waste. BPA-free Tritan water tanks with integrated UV sterilization ensure every drop stays fresh and safe—a solution that protects both your family's health and the environment.

£459.99

Buy on Amazon

Specification

Features

Advanced 7-Stage Filtration with Lab-Certified Purity

The Jimmy R9 Pro uses a seven-stage filtration system built around a 0.0001 micron reverse osmosis membrane, combined with UV sterilisation. Lab testing shows removal rates of over 99% for key contaminants, including lead, chlorine, nitrates and PFAS. The system also reduces heavy metals, bacteria and viruses, so the water it produces should be consistently clean and pleasant to drink.

Instant Hot, Cold & Ambient Water with Full Temperature Presets

Water is dispensed at your chosen temperature in around three seconds. There are six hot water presets (45°C, 55°C, 65°C, 75°C, 85°C and 98°C), along with cold (10-15°C) and ambient settings, which covers everything from baby formula and tea to coffee and general drinking water. You can also set the dispensing volume to 120ml, 200ml, 300ml or 500ml, so each pour is measured rather than guesswork.

Countertop Convenience – No Installation, No Hassle

This is a plug-and-play countertop unit, so there is no plumbing, drilling or installation work involved, and it takes up relatively little space. It has a 5.5L raw water tank and two removable purified water pitchers. The unit carries on purifying while a pitcher is in use, so you can keep one chilled in the fridge or take the other to the table or office and still have clean water on tap.

Smart Touchscreen with Safety Features

Temperature and dispensing volume are adjusted through a touchscreen on the front of the unit. A child lock prevents accidental dispensing, which is a sensible inclusion with a 98°C option on the panel, and the illuminated water outlet makes it easier to fill a cup in low light. Jimmy also states that heating and cooling are close to silent in operation.

Long-Life Filters for Lower Costs and Less Waste

The R9 Pro uses two 12-month pre-filters (the M2S and Q2S, rated at 3,000 bottles each) and a 24-month RO membrane (the RO-2.0S, rated at 7,000 bottles). Longer filter life means fewer replacements to buy, lower running costs over time, and less plastic waste compared with bottled water or shorter-life filter systems. The water tanks are made from BPA-free Tritan and include built-in UV sterilisation to keep stored water fresh.

What is Reverse Osmosis Water Purification?

Reverse osmosis (RO) is a filtration method that forces water through a semi-permeable membrane with pores small enough to block dissolved salts, heavy metals, and most contaminants that pass straight through a standard carbon filter. The membrane on a unit like the Jimmy R9 Pro is rated at 0.0001 micron, which is small enough to catch things like lead, chlorine, and nitrates, along with PFAS (“forever chemicals”) that have become a bigger concern in UK tap water over the last few years.

The process works because normal osmosis would naturally move water from a low-concentration solution to a high-concentration one. RO reverses that by applying pressure to push water the other way, leaving the dissolved solids behind on one side of the membrane while purified water passes through to the other. This is the same core technology used in most bottled water plants and in higher-end domestic filter systems, just scaled down into a countertop unit.

The tradeoff is that RO systems remove essentially everything, including minerals that some people prefer to keep in their drinking water. The third stage on the R9 Pro is designed to add a small amount of minerals back in, but as the TDS readings later in this review show, the end result is still very low in dissolved solids compared with tap water. Whether that matters is largely down to taste, and I will come back to it in the performance section.

TDS Readings Explained

TDS stands for Total Dissolved Solids, measured in parts per million (ppm). It is a rough measurement of everything dissolved in a sample of water, including minerals, salts, and metals, but it does not tell you what those solids actually are. A TDS meter cannot distinguish between calcium (largely harmless) and something like lead (not harmless), so a low TDS reading is not proof of safety on its own, just a proxy for how much has been filtered out.

UK tap water typically sits somewhere between 200 and 400 ppm depending on region, since hard water areas naturally carry more dissolved minerals. After RO filtration, TDS readings commonly drop to below 10 ppm, since the membrane removes the vast majority of dissolved material regardless of what it is. Manufacturers often quote a 99%+ removal rate for RO systems, and a before and after TDS test is the easiest way to actually verify that claim rather than just taking the marketing figure at face value.

M2S, RO, and Q2S Filters

Countertop RO systems like the R9 Pro typically use a multi-stage filtration setup, and the naming of individual filter stages varies between manufacturers. Based on the Jimmy R9 Pro configuration, the stages break down as follows.

1. M2S filter: a pre-filtration stage that handles sediment, rust, and larger particulate matter before the water reaches the RO membrane. This stage is rated for around 3,000 bottles and needs replacing roughly every 12 months under typical household use, and it exists mainly to protect the more expensive RO membrane downstream from premature clogging.

2. RO-2.0S membrane: this is the core reverse osmosis stage doing the actual fine filtration work described above. It is rated for a longer service life of around 7,000 bottles over 24 months, which makes sense as it is the most expensive component to replace and the one doing the bulk of the contaminant removal.

3. Q2S filter: another pre-filtration or polishing stage, also rated for around 3,000 bottles over 12 months, typically handling chlorine taste and odour along with some remaining particulates before or after the RO stage.

The practical point for anyone comparing systems is that filter replacement cost and frequency matter as much as the headline filtration numbers. A membrane that lasts 24 months sounds good until you factor in that the two supporting pre-filters need replacing twice as often, so total running cost over a couple of years is worth working out before buying rather than after.

Design / Set Up

The R9 Pro is a two-part unit. The main tower houses the three filters, the heating and cooling hardware, the touchscreen, and the dock for the pure water pitcher, while the 5.5 litre raw water tank sits alongside it. The tank lifts away from the side of the machine, so you can carry it to the tap for refilling rather than shuffling the whole 9kg appliance around the worktop, which is a small thing that makes a real difference day to day.

At 381 x 252 x 367mm, it is not a small appliance, and you need to allow some clearance above it to lift the tank lid and access the filters. It has taken the spot my kettle used to occupy, but it uses considerably more counter space, roughly what you would give up for a large air fryer. The dark grey finish is inoffensive, and the build quality is decent for the price. The housing is food-grade plastic, and the two 1 litre pitchers are made from BPA-free Tritan with proper lids and handles, so they feel like jugs you would happily put on the table rather than flimsy accessories.

In the box, you get the unit with the three filters pre-installed, the two pitchers, the raw water tank, a power cable, a quick start guide, the full manual, and a couple of sachets of citric acid descaler for maintenance further down the line. There is also a large quick instruction sticker on the lid of the raw tank covering cooling activation, filter resets, the child lock, and the TDS alarm. It peels off if you find it ugly, but I have left mine in place because it is genuinely useful for anyone else in the house who has not read the manual.

Set up is about as simple as it gets. Rinse the tanks and pitchers, check the filters are seated (they twist in and out with a quarter turn, no tools required), fill the raw tank with cold tap water, and plug it in. As soon as a pitcher is docked on the front, the machine automatically starts filtering and keeps that pitcher topped up in the background without you pressing anything.

The one part of setup that takes real time is the initial flush. The instructions tell you to discard the first few pitchers of pure water to clear carbon fines and manufacturing residue from the filters, and the water did look slightly cloudy for the first couple of cycles, which is normal. Realistically, you want to dump the first three to five pitchers before drinking anything, and with a purification rate of around 0.3 litres per minute, the machine is not properly usable for the first hour or two after unboxing. It is a one-off job, but worth knowing if you were planning to make a hot drink straight away.

One other quirk worth flagging: the raw water tank is not heat resistant, so it should only ever be filled with cold tap water, and Jimmy recommends emptying any leftover raw water before each refill. There is a good reason for that, which I will come back to shortly.

Functions

The whole machine is controlled through the LED touch panel on the front, and it is one of the better implementations I have seen on this type of appliance. There is no companion app, and I consider that a positive for a water dispenser; everything is one or two taps away on the machine itself, and Jimmy has not tried to lock any functionality behind a login.

The display permanently shows two live TDS readings: the source TDS of the water in the raw tank and the pure TDS of the filtered output. Alongside those are three battery-style icons showing the remaining life of each filter, so you can see at a glance when a replacement is due rather than relying on a calendar reminder.

For dispensing, you pick a volume and a temperature. The volume presets are 120ml, 200ml, 300ml and 500ml, and the machine stops automatically once it has poured the selected amount, or you can dispense manually and tap again to stop. The temperature options are cold, ambient, and six hot presets at 45°C, 55°C, 65°C, 75°C, 85°C and 98°C, each marked with an icon suggesting a use, so 45°C is shown with a baby bottle for formula, 85°C with a coffee cup, and 98°C with a teacup for anything that wants near-boiling water.

The child lock is enabled by pressing and holding the lock icon for five seconds, which disables the panel entirely. With 98°C water available at a touch, I would call this a requirement rather than a nice-to-have if there are young children around, and it works exactly as intended.

The water outlet is illuminated and glows red while hot water is being dispensed, which is a simple but effective warning that also makes it easier to fill a cup in low light.

UV-C sterilisation is built into the water tanks and periodically treats the stored water to stop anything growing in it. Jimmy still recommends discarding pure water that has been sitting for more than 24 hours, which seems a sensible precaution. One long-term quirk reported on the previous R9, which shares the same tank design, is that the clear Tritan pitchers can turn slightly milky over time from the constant UV exposure. It is purely cosmetic and does not affect the water, but do not expect the jugs to stay showroom-clear forever.

The cooling system is switched off by default, and you enable it by pressing and holding the snowflake icon. I will cover how well it works in the performance section.

Finally, there is a raw water TDS alarm. If the water in the raw tank climbs above 999 ppm, the machine sounds a buzzer and prompts you to replace it. That sounds like an edge case until you understand how this machine handles waste water, which deserves its own section.

Waste Water and the Pure to Drain Ratio

Every reverse osmosis system produces waste water, usually called concentrate or drain water, which carries away the dissolved solids that the membrane rejects. The R9 Pro is rated at a 3 to 1 pure to drain ratio, so for every three litres of purified water, roughly one litre of concentrate is produced. For a countertop unit that is a respectable figure; traditional under-sink systems have historically wasted three or four litres for every litre purified, although modern designs have improved considerably.

Because the R9 Pro has no drain connection, the concentrate is pumped back into the raw water tank rather than being sent down a pipe. In practice, this means the water in the raw tank becomes gradually more concentrated the longer you run the same tankful, and you can watch the source TDS reading on the display creep upwards over a session. My source reading started at around 205 ppm from the tap and had climbed noticeably by the time the tank needed attention. Eventually the machine prompts you to empty the tank and refill it with fresh tap water, and if the reading ever exceeds 999 ppm, you get the buzzer mentioned earlier.

In my use, a full 5.5 litre tank produces roughly three to four pitchers of pure water before it wants fresh water, although this will vary with how hard your water is and how much you draw off. This is also why Jimmy tells you to empty any remaining raw water before refilling rather than simply topping the tank up. If you keep diluting increasingly concentrated water, the filters work harder and the membrane will not last as long. Tipping the leftover water down the sink, or onto the garden, takes seconds, but it is an extra habit to build into your routine that a plumbed-in system would not need.

Performance – Water Purification & TDS Readings

Starting with the headline job, the filtration works, and the machine gives you the numbers to back that up. My tap water measured a source TDS of around 205 ppm, and the pure water coming out of the R9 Pro consistently reads 3 ppm, which works out at a reduction of roughly 98.5%. That is in line with the 99%+ removal rates Jimmy quotes, and it is the sort of before-and-after figure you can verify yourself on the display rather than taking on trust.

That source reading surprised me. I live in a soft water area and always assumed the water quality here was quite good, but just over 200 ppm is a fair amount of dissolved material, and it is a useful reminder that soft water is not the same thing as pure water. As covered earlier, a TDS meter cannot tell you what those dissolved solids actually are, so I am not suggesting my tap water is unsafe. But if chlorine taste, PFAS, or lead from older pipework are on your list of concerns, the R9 Pro demonstrably strips almost all dissolved material out, and you can watch it doing so.

One technical detail worth knowing: the pure TDS sensor takes its reading before the final mineralisation stage, so an external TDS meter will usually show a slightly higher figure in the pitcher than the display does. The Q2S stage is described as a mineralised filter, but with the output still measuring in single digits, only a token amount is being added back. The result is water that tastes noticeably softer and more neutral than tap water. I would describe it as clean rather than flat, but if you are used to mineral-heavy water, RO-filtered water can take a little getting used to.

Now for the main issue with the Jimmy R9 Pro: the process of filtering water through multiple filter stages means that the flow rate is very slow. The quoted purification speed is around 0.3 litres per minute, and that matches what I saw. In comparison to my fridge freezer, which has a basic carbon filter on its water dispenser, I would estimate the flow rate is around 25% of the speed.

It is not so bad if you treat the pitchers as the primary way of using the machine, pre-filling one for the fridge and leaving the other docked. But filling a pint glass directly from the dispenser is frustratingly slow, taking the best part of two minutes, and that is made worse by my ADHD and complete lack of patience. My advice is to work from the pitchers for cold and ambient water, and save the direct dispenser for hot drinks and measured pours.

Performance – Cooling Function

The cooling function is the headline addition over the standard R9, and it is also the area where expectations need managing the most.

The chiller is off by default, and you activate it by holding down the snowflake icon; the machine then needs 15 minutes or so before it will dispense chilled water. The R9 Pro uses thermoelectric (Peltier) cooling rather than a compressor like a fridge. A small internal tank of filtered water is held at temperature constantly by the Peltier module, a fan, and a circulation pump. The upside is that it runs quietly, with just a faint hum similar to a very quiet mini fridge and no compressor vibration. The downside is that 100W of Peltier cooling cannot pull water anywhere near fridge temperatures.

Jimmy quotes a cold water range of 10-15°C, and that matches my experience. The problem is that it is never as chilled as the water from the dispenser on my fridge. The R9 Pro’s cold water is what I would call cellar temperature: noticeably cooler than ambient and perfectly pleasant, but not the ice-cold glass some people will be expecting on a hot day. Draw off a lot of cold water in one go and it also needs a while to recover back down to temperature.

There is an easy workaround, which is what I did anyway: fill one of the two pitchers and keep it in the fridge. That gets you properly cold filtered water and is arguably the best use of the second pitcher. It does make the built-in cooling feel slightly redundant, though, and leaving the chiller enabled adds a constant background power draw, unlike the heater, which only uses power while it is dispensing. Unless you are drawing chilled water regularly through the day, I would leave the cooling off and use the fridge.

Performance – Instant Hot Water

The hot water function was the main selling point of this device for me at first, as I had not fully read up on all the benefits of reverse osmosis. I drink a lot of coffee, and the idea of 98°C water a few seconds after pressing a button sounded ideal.

The good news is that the instant part is real. There is no tank of pre-heated water sitting inside; the 2200W element heats the water as it flows through, so hot water starts arriving around three seconds after you press the button, at whichever of the six temperatures you selected. For a single mug, that is quicker than waiting for a kettle, and the measured presets mean you can put exactly 300ml into a mug without standing over it.

Unfortunately, this has the same issue as the general water function. The flow rate is very slow, and I tend to have a very large cup of coffee. A 500ml pour at 98°C takes well over a minute to complete, and while the machine gets on with it unattended, it does undermine the instant branding a little. Subjectively, I would say it is probably quicker to use this than a kettle if you are only making one cup of coffee, but when I make one for myself and my partner, it is quite a bit slower than the kettle. A 3kW kettle will boil 1.5 litres in about three minutes; the R9 Pro would need more than three minutes just to dispense a single litre.

Temperature accuracy is reasonable rather than perfect. When I measured the output, pours were often a few degrees away from the selected preset, and the biggest offset happens straight after switching temperatures. Request 98°C immediately after dispensing cold water and the first pour arrives well short of the target, in the low 80s, because the residual cool water sitting in the internal line drags it down. The same happens in reverse: a 45°C pour straight after hot water use came out above 50°C. Repeated pours at the same temperature settle much closer to the mark. If you are using the 45°C setting for baby formula, run a short purge pour first and check with a thermometer, because the first pour after hot water use is not accurate enough to trust on its own.

Two smaller points. The 98°C setting is close to boiling but is not a rolling boil, which is fine for tea and coffee but not for anything that needs a genuine 100°C. And on the plus side, the flow-through heater only heats the water you actually dispense, so nothing is wasted on the half-full kettle of water most of us boil out of habit, and standby consumption is only 1W with the chiller switched off.

Filter Replacements

There are three filters:

Filter 1: M2S. Needs replacing approximately every 12 months and costs £30 on Amazon.

Filter 2: RO. Needs replacing approximately every 24 months and costs £42.54 on Amazon.

Filter 3: Q2S. Needs replacing approximately every 12 months and costs £30 on Amazon.

If we assume the quoted replacement times are accurate, that is £81 per year in filter costs, or £6.75 per month.

For context, that is more than running a basic filter jug, where cartridges typically work out at £3 to £4 per month, but a jug does nothing like the same level of filtration. Against bottled water, the R9 Pro is comfortably cheaper. A household getting through a couple of litres a day would spend well over £200 a year even on cheap supermarket water, before considering the plastic waste.

The replacement process itself is painless. The filters twist out of the top of the machine without tools, the display tracks the remaining life of each one, and the quick instructions walk you through resetting the filter indicator afterwards. The quoted intervals are based on typical use, so if you are in a hard water area or get through a lot of water, expect the pre-filters to need changing sooner rather than later. The included citric acid sachets are for descaling the heating circuit rather than cleaning the filters, and it is worth running a descale every few months if you use the hot water function heavily, just as you would with a kettle.

Price and Alternative Options

Jimmy R9 Pro Reverse Osmosis Water Filter System Countertop, Cold and Instant Hot Water Dispenser, Mineralized RO Water Purifier with 7-Stage Filtration, Temperature Control, UV, TDS Monitor

• Advanced 7-Stage Filtration with Lab-Certified Purity: The JIMMY R9 PRO Reverse Osmosis Water Purifier has a high-tech filtration system that uses a very fine 0.0001 μm RO membrane and UV light to kill germs, and it It delivers proven 99%+ removal rates across critical contaminants, including lead, chlorine, nitrates, and PFAS. The system also effectively reduces heavy metals, bacteria, and viruses—delivering consistently pure, great-tasting water you can trust.
• Instant Hot, Cold & Ambient Water with Full Temperature Presets: Get perfectly tempered water in just 3 seconds. JIMMY R9 PRO Countertop Water Purifier offers 6 precise hot-water presets (45℃ / 55℃ / 65℃ / 75℃ / 85℃ / 98℃), plus cold (10–15℃) and ambient options—ideal for baby formula, tea, coffee, or daily hydration. Accurate dispensing control (120 ml / 200 ml / 300 ml / 500 ml) ensures every pour is effortless, consistent, and perfectly measured.
• Countertop Convenience, No Installation, No Hassle: Enjoy pure water instantly with our true plug-and-play countertop system—no plumbing, drilling, or installation required, saving valuable space. Featuring a 5.5 L raw water tank and 2 removable purified water pitchers, it offers ultimate flexibility. While the system continues purifying water, you can refrigerate one pitcher and carry it to the table or office—clean water is always at hand.
• Smart Touchscreen with Safety Features: Easily customize your preferred temperature and dispensing volume through the intuitive touchscreen interface. The child lock function ensures safety by preventing accidental dispensing, while the illuminated water outlet provides convenient access even in low-light conditions. Whisper-quiet heating and cooling complete the seamless, user-friendly experience.
• Long-Life Filters for Lower Costs and Less Waste: The JIMMY R9 Pro RO Water Filtration System's durable filtration system features 12-month pre-filters (M2S and Q2S, 3,000-bottle capacity each) and a 24-month RO membrane (RO2.0S, 7,000-bottle capacity), dramatically reducing maintenance frequency, costs, and plastic waste. BPA-free Tritan water tanks with integrated UV sterilization ensure every drop stays fresh and safe—a solution that protects both your family's health and the environment.

£459.99

Buy on Amazon

The Jimmy R9 Pro is available on Amazon for £459 and has been as low as £370.

The £459 RRP is a touch high in my opinion, particularly when you look at what else is available, but at the £370 it has previously dropped to, the value picture improves considerably.

Alternative options include:

The Waterdrop A2 is priced at £400 and also does hot and cold water, which makes it the closest direct rival. On paper it is a very similar proposition: countertop reverse osmosis, no plumbing, and a range of temperature presets, for £59 less than the Jimmy at RRP.

The Waterdrop CoreRO is only £229, but it appears to only do ambient water. A heating model is also available at £239. If you do not care about chilled or instant hot water and just want RO filtration on the worktop, either of those undercuts the Jimmy by a wide margin.

If you are just looking for reverse osmosis water filtration, then an under-the-tap system is arguably superior and should not have the same flow rate issues, because the filtered water is delivered through your existing tap at something much closer to normal pressure.

iSpring seems to be a popular option; their most affordable model is the RCC7AK, priced at £246. The most advanced model is the RCC1UP-AK at £479, which adds UV protection and a water pump, which boosts water pressure. Both models include remineralisation, which adds minerals back into the water to improve the taste.

The trade-off with under-sink systems is the installation itself. You need space in the cupboard, a connection to the cold feed and drain, and either the confidence to fit it yourself or the cost of a plumber. You also lose the instant hot and chilled water, so the kettle stays. For renters, or anyone who cannot or does not want to modify their plumbing, the countertop format is the practical choice, and that is exactly the buyer the R9 Pro is aimed at.

Overall

I have slightly mixed feelings about the Jimmy R9 Pro. It is certainly not a bad product, but I guess it did not quite meet my unreasonable expectations, combined with my initial lack of understanding of the benefits of reverse osmosis.

For me, there are two main issues. The poor flow rate makes this hard to use as a full replacement for my kettle, and the cooling function is underwhelming, never getting close to the temperature of the water from my fridge dispenser. I also live in a soft water area, so I do not get all the benefits from the purification.

On the flip side, after reading up on reverse osmosis water filtering, I am starting to come around to the idea of using this long-term. There are two issues that are relatively important to me: the removal of PFAS (“forever chemicals”) and the removal of contaminants such as lead, which many UK water pipes still use. I always thought the water quality where we live was quite good, but the TDS readings indicate otherwise.

So, now that I have an appreciation for the importance of reverse osmosis water filtration, I am inclined to carry on using the Jimmy R9 Pro.

That being said, if I was parting with my own money, I would be inclined to investigate the practicality of installing an under-the-tap system and then continuing to boil water as usual. A plumbed-in system side-steps the flow rate problem entirely, and something like the iSpring RCC1UP-AK adds remineralisation for better-tasting water at a similar price.

However, if that is not practical, or you just do not want the inconvenience of getting one installed, then I can definitely recommend the Jimmy R9 Pro. It is a great all-in-one system with instant hot water, filtration performance you can verify on the display, and no installation whatsoever. It is just the flow rate I find a bit off-putting, and I would treat the cooling function as a bonus rather than a reason to buy.

James Smythe( Owner / Editor )

I am James, a UK-based tech enthusiast and the Editor and Owner of Mighty Gadget, which I’ve proudly run since 2007. Passionate about all things technology, my expertise spans from computers and networking to mobile, wearables, and smart home devices.

As a fitness fanatic who loves running and cycling, I also have a keen interest in fitness-related technology, and I take every opportunity to cover this niche on my blog. My diverse interests allow me to bring a unique perspective to tech blogging, merging lifestyle, fitness, and the latest tech trends.

In my academic pursuits, I earned a BSc in Information Systems Design from UCLAN, before advancing my learning with a Master’s Degree in Computing.

I’m proud to share that Vuelio has consistently ranked Mighty Gadget as one of the top technology blogs in the UK. With my dedication to technology and drive to share my insights, I aim to continue providing my readers with engaging and informative content.

I work directly with the companies he reviews products for or their chosen PR agency.

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