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

I wish I knew about these filtration systems years ago as this is now one of my most important things I have bought recently. Pure clean water from my tap which tastes just like bottled water, it's really that good. I have no clue about plumbing at all and still fitted this up myself with no major problems. All I needed was a little fitting from my local plumb store so I could attach the supplied cold water feed to my own water supply. The system is hidden away under my sink and the new tap looks great. Everything works exactly as it should, I'm over the moon with it and I'll never be without one from now on.

I have had one before therefore for our new property it was the obvious choice. Very robust, easy to assemble with clear instructions. Very well made. The water now is safe and tastes great especially with the additional alkaline add back cartridge. The tank is big so there is always water available for drinking and cooking, rinsing food etc. Why buy and carry litres of bottled water. RO is the way to better sustainability.

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!

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!

Love this RO filter system - our tap water was undrinkable and we now feel like we are drinking liquid gold! Definitely recommend! Francis gave us great customer service along the way. Installation is possible on your own, if you watch the instructional videos.

Awful, you need to spend a few hundred pounds extra to install it. Completely wasted my money....Rubbish