iSpring RCC7AK, NSF Certified, 75 GPD, Alkaline 6-Stage Reverse Osmosis System, pH+ Remineralization RO Water Filter System Under Sink, Patented Top-Mounted Faucet Design for Easy Installation

I work in the metal finishing industry and deal with $10k-50k RO/DI systems on a mfg level so I am very familiar with simple RO systems like this.TLDR: yes it’s a very good system. All consumer RO systems don’t differ from each other too much. But the nice part about this iSpring system is you get fantastic support in terms of parts and everything is user serviceable.Quality: very good. Parts are solid, and the water faucet has a very nice build quality. Does not scream cheap.Install: as easy as it gets. It comes with clear instructions and 90% of it is already pre assembled. All you do is drill a reject-water drain, connect the lines and install the faucet. No specialty tools are needed.The system replaces my old 4 stage RO system. After you install it, you will notice the clean water that comes out is very “dirty.” This is normal because you’ll need to be flushing out all the micro particulates inside these filters. This basically means you need to run about 5 gallons through it before it’s fully broken in.The spec’s on the iSpring system are decent for a consumer level RO system. In my tests, it makes Aprox 1gal of clean drinking water for every 1.5 gallons of reject water. This is expected if a $200 system. It would be a different story if it were an industrial level $20k system. So keep that in mind. The reject water will go down the drain (you can catch it in a container to water plants if you’re frugal with your water)Testing: my line of work allows me to have lab grade equipment to test water. By this I mean I can check for conductivity of the TDS and pH. I work with meaurments in terms of microsiemens (μS and mS). Generally, the lower the μS, the “cleaner” the water. However, μS does NOT indicate exactly what is in the water. Water was measured by my oakton CON110 (calibrated prior to testing)city water: 773μS @56F (not good, but SoCal has bad city water to begin with)1st gal sample: 4,050μS @59F (expected)2nd gal sample: 851μS @57F (getting better)Post 10gal sample: 45μS @77F (very good)Reject water: 1000-1100 μSPH boost: This system claims it will boost the PH due to its alkaline filter. Yes, it does it, but not by much and is pretty much worthless. the city water is around 7.2pH. My post water sample was at 7.7pH which is nowhere in “alkaline” territory. But it’s fine because alkaline water is a hoaxs anyways (coming from a bio chemical engineer, me). PH measured by my oakton PC450 meter (calibrated prior to testing with buffer 4/7/10 @77F).Overall, it’s a very good system and does what it’s suppose to: remove TDS from dirty city water and create clean good tasting drinking water. It took my 773uS city water (SoCal) down to 45uS, which is better than I expected.Keep in mind these numbers will change over time as your filters/RO membrane get dirty. If you live in SoCal where your city water is 700-900uS, you’ll have to change them MUCH more frequently than if you lived in WA where your city water is 75-150uS (I use to live there).

This filtration system is awesome. It tastes great. It took time, but was easy to install. And their customer service is great (thank you Sean).The taste is amazing. It is better than most bottled waters. It tastes better than delivered water jugs.Installation: It was easy to install but there are understandably a lot of parts. 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. The youtube videos are helpful too.I also purchased the iSpring (model # ICEK) Ultra Safe Fridge Water Line Connection and Ice Maker Installation Kit for Reverse Osmosis RO Systems & Water Filters, 1/4", 20 feet to connect from the water dispenser to my refigerator ice maker.Performance is outstanding. It doesn't leak, but it has a water stop sensor if it does. The water flow is great. 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. 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 Sean said they redesigned the part and they offered to send the replacement part for free. The new part worked, and he said this new part is included with the new kits.

I purchased this Ispring in November and installed it with a friend 😊several weeks later. Overall the installation is fairly easy but it is a little daunting and certainly helps to have some plumbing experience to make the process run smoothly. I had technical difficulty registering my purchase on line, and also noted the water initially had a slightly off taste so I contacted customer service/support at Ispring and reached John who immediately resolved the product registration, offered me a quick solution to try (re the water taste) and told me if that didn’t work just to let him know and he would send me a new filter. The water taste resolved itself without me needing the new part- but then subsequently we noticed the unit made some strange vibrating sounds. Again I reached out to John- and he immediately responded and came to the rescue! He quickly sent me a replacement part, easy install instructions and the unit is now working perfectly and the water quality is excellent and no more noise!We are really enjoying our ispring. We love the water and it is so seamless to use and the spout matches my existing faucet perfectly. I have finally been able to stop buying plastic bottles of water -yay!!! And even better it is so convenient that we find ourselves constantly refilling our glasses with the ispring filtered water and finally getting great daily hydration!How great to buy a product that really works well AND is BACKED with FANTASTIC, responsive knowledgeable, professional, and pleasant customer support and service! Thank you John!Oh- and also to be able to install the tank horizontally was so important due to the space limitations under our sink!