iSpring RCC7AK, NSF Certified 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Superb Taste Drinking Water Filter

What I like about adding this system in my kitchen is that for one, it was simple to install. Two, the great taste of the water, and three the saving of not having to buy bottled water. As we know how it is ultimately harmful to drink water from plastic bottles, this is a remedy to that problem. In addition, it removes fluoride from our drinking water. That is a whole different subject, and if you don't know research the negative effects of fluoride and what it does to your pineal gland.

I bought my RCC7AK system in September 2018 and did not have a single problem for 6 years. The system does remove about 90% of total dissolved solids and takes my water from 500(!) down to 30 to 50.The water tastes great and so does my coffee and iced tea. And no more lugging 5 gallon bottles of water.The system is easy to install. A basic do-it-yourselfer can do it. If you know a little plumbing, it is a piece of cake.After 6 years, I had pinhole leak in one of the filter housings. This may have been due to my higher than spec (50-70psi) water pressure and that I was not using the recommended pressure regulator. I called Customer Service and was immediately connected to Nick. No voicemail! Nick arranged to ship me replacement parts without charge. All the raves about customer service in the other reviews are true.At 6 years, I was well out of warranty and I really appreciate this level of customer care. Thank you, Nick.I would recommend this system to my friends and family. I have some future construction plans and I plan on buying another system for myself.

Bottom line: This filtration system is absolutely awesome. It tastes great. It was easy to install. And their customer service is awesome (thank you Francis and Sean for your outstanding support).Details:-Taste: Absolutely amazing. It is better than most bottled waters I have ever drank. Super picky people that only drink bottled water drink my water and are wowed. It certainly tastes better than delivered water jugs or the water you get and dispensaries at Publix. I'm constantly telling my friends and family to get it.-Installation: It was quite easy to install. It does require a bit of work (including one hole drilled into your existing sink drain). But everything is color coded and the process is pretty dang easy. If you watch the youtube videos, it becomes goof proof.-Performance: Outstanding. It doesn't leak (once installed correctly). And the water flow is great. I'm not sure how, but the water reservoir keeps the water under pressure. I discovered this when I unsnapped the hose once to move the reservoir and got sprayed. If you do that, here's a hint: close the valve first.-Customer Service: The company really shines here. If you need help, call them, fill out their customer service form on their website, or e-mail them, and they will get back to you and take care of your issue ASAP. I had to contact them on two occasions:1) The faucet I got was brushed nickel and the rest of my sink things are stainless steel. This was my fault because I didn't pay attention while ordering. They replaced the faucet without any fuss. I didn't have to exchange the entire unit. I used the website form to resolve this issue. Thanks for the help Francis.2) When I installed it, there was a slight leak from the spot the pipe connected to the valve that connects to the faucet. I called right before 5pm and they picked up without any wait or automated messages. I described my problem and they offered to send an entire new faucet and replacement valves for free. I was actually able to fix this leak later simply by snipping the end of the hose and sticking it back into the valve (make sure the snip is perfectly parallel). Thanks for the help Sean. I hope you get the email letting you know I don't need the extra parts any more.

I purchased the iSpring RCC7AK 6-Stage RO filter out of necessity when I could not purchase a sufficient quantity of bottled water at the store due to the COVID-19 shortages. Before this, I drank only bottled water because my tap water is especially rusty and full of sediment due to old pipes in my neighborhood. The tap water also had a strong smell of chlorine, metallic taste and would smell funny if stored in the refrigerator for a few days.That is no longer the case! Now, thanks to this RO filter system, I get water from the faucet that is as good as, if not better, than the water I bought from the store. I figure I'm saving at least $25 a month in water costs, which will have the system pay for itself in way under a year. Plus, no more lugging gallons of water from the store or making unnecessary trips in search of water.The system is fairly easy to install, requiring only the most basic understanding of plumbing and hand tools, albeit it helps to be flexible to get under your sink. The instruction manual is helpful, and there are several videos on YouTube to walk you through the process. All I can really say is that there's a big difference between watching someone else do it and doing it yourself. In particular, the instructional videos make it seem easier than it is because they're not shimmying under a kitchen sink with three drain lines, multiple water hoses and electrical conduits for a disposal and dishwasher.I feel the one thing either missing from or not emphasized enough in the manual is that the storage tank can be stood upright or placed on its side. This was critical for me because the tank would not fit under my sink standing up, and I have a standard 36" cabinet under my sink. My drain setup may be most of the issue - you can see how complicated it is in the pictures. Of course, what little usable space I had under the sink is mostly gone, but that's a small price to pay for clean water.Another potential issue with the instructions is with how vague they are regarding the installation of the drain saddle. It is recommended that it be placed on a horizontal section of pipe to prevent the sound of dripping water, but that's about all it says. My suggestion is to put it on a horizontal section of pipe just past the P-trap, preferably with the hole pointing straight up. Not only does this eliminate the sound of dripping water, but this might also prevent your system from malfunctioning should you get a clog in your trap, and it's less likely to leak into your cabinets if the drain saddle doesn't seal perfectly. I may be wrong about this, but I also think the videos missed the part about cutting a 45 degree angle on the waste water tubing (black tubing) to prevent the line from being blocked if it is over-inserted in the drain pipe.The instructions also walk you through a system purge to clear the lines, tank and filters. I think a combined approach from the videos and manual worked best for me. As shown in one of the YouTube videos, I disconnected the line from the third stage filter to purge the first three stages separately from the rest of the system. Then, keeping the tank valve closed, I reconnected the system and purged the last three stages. This is especially important for the systems with the Alkalinity post-filter (Stage 5). I had to purge the last three sections for 30 minutes before the water stopped being cloudy from what I assume was excess minerals coming from the Alkalinity filter. After that, I opened the tank valve, let it fill once and drained it according to the instructions.As for the hardware, my main gripe is that not all the quick connects had pre-installed, color-coordinated clips. However, the box contained a bag of extra parts that allowed me to perform the installation. I'm not sure if this was an oversight or just the way it is supposed to be. There was some water in the RO canister when I opened it to install the RO membrane. I speculate that either my filter system had been returned (possibly explaining the "missing" clips) or that the system was pressure tested prior to leaving the factory. In any event, the purge process cleaned everything up.A few other minor gripes: The filter section could use some kind of handle to lift it and for holding it while tightening or loosening the filter canisters. Perhaps this is intentional to keep you from over-tightening the connections? Also, the mounting instructions seem like an afterthought. I really can't imagine anyone mounting the filter section under their counter. It is far easier to just slide it under your sink and rest in on the bottom of the first three stages or lay the system on its back.Also, I installed the faucet in an opening in my sink originally intended for a soap dispenser that I never used. I cannot imagine most people using the included mounting hardware for the faucet, so that seems like it should have been a separate option. If it's of any importance, the faucet that came with my system is brushed nickel, but my original hardware is chrome. The distinction isn't that noticeable and I don't mind it, but it might have been nice to have an option (if there was one, I was not aware of it).My system also came with a leak detector that can shut off the flow of water to the system if water starts to pool under the sink. My leak detector uses some kind of pulp material that absorbs water and expands to shut off the flow. It's very low-tech, but that may be a good thing. Some of the videos I saw showed systems with a battery-powered leak detector. Of course, batteries can wear out. Still, an option between the two might have been nice. I did not install the leak detector, so this is just an observation.Overall, I am very pleased with the system despite my concerns and observations. The system is simple and sturdy. The water is creates tastes great and looks crystal clear. My only regret is not having purchased it sooner.