iSpring RCC7AK 6 Stage Reverse Osmosis Water System Under Sink with Alkaline Remineralization, NSF Certified, 75 GPD, TDS Reduction

I’ve been using this water filter for a little while now, and I’m really impressed with it. The water tastes noticeably better — clean, fresh, and smooth. Even my family commented on the difference! What I really love is how convenient it is to use. The design is user-friendly, easy to refill, and doesn’t take up much space in the kitchen. It fits perfectly into our daily routine without any hassle. Most importantly, the filter works really well. I tested the water with a TDS meter before and after filtering, and the results clearly showed a big improvement. It gives me peace of mind knowing that it’s actually doing what it promises. Overall, I’m very happy with this purchase. It’s affordable, reliable, and makes a real difference in the quality of our drinking water. Definitely recommend!

DONT OVERTIGHTEN the tank valve by hand!!!!Man what an amazing bit of kit , but my 280lb bodybuilder self didn’t realize “hand tight” is not MY HAND TIGHT.Called iSpring and talked to a human, Nick, he’s super rad. Sent me a replacement overnight for free and gave me a lot of confidence in this product.Don’t forget to register your product for a 3 year warranty!!Stop drinking fluoride and level up guys and girls!!Peace

This system is absolutely worth the price. The taste is noticeable in every drink and dishes. All my cooking is based on this water. Everyone visiting my home can taste the difference in taste on coffee and etc.Since we drink this water our digestive problems have been disappeared, even my dogs drink only this water. I am recommending everyone that I know this system. I would buy this again and again. Replacing filte are always in good price .Also I Spring customer service is great, thank you John for easy help in my case.

REF; RCC7AK 6 STAGE RO SYSTEM:Firstly, I would like to say that the customer service at iSpring is exceptional - Francis to be specific.I had a very minor issue that did not scare me away from this product nor create any annoyance re. installation. Francis quickly contacted and helped rectify a very minor issue I had, following up with me to try and rectify the issue asap - thank you Francis!Packaging & instructions/fitting:The box arrived well packed and packed so well that I would not expect damage during transit. Each item was in its own box and had very little movement. The items came out of the box easily and had no damage. Well packed.The instructions for the assembly and fitment were very detailed. If self-fitting this unit, you probably have some kind of idea about what you are doing so you may not need to use the instructions as gospel, but they do provide a very well detailed and easy to follow assembly instruction. The flow diagram was welcomed too. A nice quick reference guide to hosing. This helped me more than the instructions - I find visual instruction easier than detailed description instruction. Whether you work in fluid engineering or fancy the DIY challenge, the instructions supplied will certainly allow you to install with ease. It took me about an hour to install and commission/leak check.The unit (although it looks rather large) fits very easily inside of my 900mm wide cupboard. It even allows for space around the filtration unit and the reservoir for placing filter spares etc. It certainly surprised me with how well the unit fits inside of my cupboard. I expected to assemble it, offer it up to the cupboard only to find it was too large to fit and then need to send it back… but I could fit two RCC7AK 6 Stage systems inside of my cupboard. Perhaps it opens scope to add further filters elements onto this system in the future…Filters are easy to change. This unit comes with a filter housing removal tool to provide leverage on the housing. Install the filtration system above the base of your unit to allow ease of filter change.There is a detailed commissioning instruction near the end of the instruction so please do follow this for the correct initial start-up procedure to purge the pre-osmosis filters (ensuring you do not put carbon deposits into the RO (reverse osmosis) membrane.Supplied parts:During assembly, I happened to think to myself 'a 90 elbow fitting would be perfect here'... they had thought of that and supplied multiple fittings! More than I needed. The length of piping was perfect. I used about half of what was provided - even with a drain line that extended far down the waste pipe into the next cupboard (install horizontal and away from the u-bend trap to eliminate a dripping noise and potential backing up of sink waste into the drain-line in the event of blockage). All parts supplied fitted my standard UK kitchen (15mm comp / 1/2" BSPP) but I did use some PTFE between the threads just to seal them as the thread form is NPT and my kitchen is BSP (thread angles are slightly different and therefore do not mate perfectly). I have had no leaks in the week I have had fitted.Taste/Testing:The taste is incredible. It tastes pure and clean. No tang or bitterness. It tastes purer than the purest bottled water I have tasted. I will now avoid drinking water that has not been through my RO system. Bottled water at a push! I have (glass) bottles stored in the fridge filled with my RO water. Bottled water is nice... but iSpring RO water is second to none. I agree with another review here that I fill my bottle with this water and take it everywhere I go.See the images for the testing. I believe that these images speak for themselves. Obviously, the RO water cannot be TDS free due to the remineralisation process but down to 47PPM from 435PPM is an incredible job and there is a clear difference in the ‘clean’ taste even between RO water and bottled water. This is evidence enough that the water is truly forced through the osmosis filter.Alkalinity of this water is slightly higher (TAP is 7.66pH, BOTTLED is 8.70pH *Sometimes artificially raised using Bicarbonate of soda, RCC7AK RO is 9.72pH). Yes, I did calibrate my pH meter prior to use! I am yet to perform some detailed research into the difference a higher pH water provides but brief research suggests that it is easier for the body to consume. I will take higher pH being better for the body at face value at this point for this review.Overview:I would suggest that this unit is installed in every home for the sake of reducing the number of chemicals that are consumed through water. At the very least, bottled water should be consumed. Avoid tap water! For the small cost (yes, the cost of this unit is relatively low) this unit is 100% worth purchasing. Fitting is easy, it comes with a nice outlet for the water, water tastes incredible, and the customer service is outstanding. Every home should be fitting one of these units. And whilst you are at it... consider stopping using fluoride containing products such as toothpaste and mouthwash. Use fluoride-free alternatives. I have personally noticed positive differences with regard to dental/mental health.BUY the iSpring RCC7AK! – I was not provided any incentive to leave this review. All opinions are from my experience of using this product!

I would give 5 stars but for the following reasons I won’t.The instructions could be better the following ways;1) More specific e.g coded parts.2) some steps omitted a clear explanation altogether e.g the leak stop valve step had no instructions how to setup.4) Ambiguity surrounding adapters and sizes. For example, I’m not sure if the cold water valve is even suitable for my UK line because it seems the instructions are for American systems. I made some adjustments to the supplied cold water supply valve (all with the provided parts) so that it would fit but not sure if this was allowed due to the ambiguity. (I think is fine since no leaks and water is filtered correctly when drawing from faucet).- Also, measurement sizes; small issue but I’m not sure whether the tank size specified is US gallons or UK gallons, supplying this system in the UK should mean they alter their product to the UK market.3) the troubleshooting sections has no information on fluctuating water pressure from the main cold water lines. (More context below).I was left confused after being 99% certain I installed the system correctly and I had (on paper) consistent cold water pressure (tested). After installation my water was cloudy and grey, the instructions says this is normal due to air and is safe but this information is incorrect and maybe dangerous.In my case, it was not air. Testing this cloudy water it showed tds ppm reading of 70~100 from a municipal water tds ppm of 330~450 (London tap water before filtering). I later discovered it must be carbon deposits but unsure how these were deposited since I correctly followed the instructions flushing the pre carbon filters and others as per instructions.After long and careful research I came to the conclusion that the cloudy grey water was caused by water pressure fluctuations from the washing machine when it was being used.In summary; there is no information or section about what to do if water pressure is affected periodically by pressure fluctuations due to different appliances which use the same cold water line as this filtration system.Which is a major caveat/issue, for some reason acknowledgment of this issue is omitted. This issue regarding fluctuations I think can be solved using a pressure regulator.