GE Merlin Reverse Osmosis Drinking Water System Review

At the time when GE was about to announce this, I was a GE water products dealer. I agree this has some great features, delivers more water per minute, saves spaces and eliminates the tank associated with other models but... A water softener is highly recommended before the Merlin because if your total hardness is over 12 grains, you may face replacing membranes annually. That is 2 at a minimum cost of $80 each. after having installed over 50 of these, We have had calls for most reporting lack of performance within the first year which I attribute to lack of use. these need to be run frequently not just for the occasional glass of water. It is good for light commercial use like a restaurant but not the average home. It produces a higher total dissolved finished product than all other R/O membranes which is why it has high flow at residential line pressure than others which product lower TDS at reduced flows. These require high pressure to operated at optimum performance and are quite weak at pressures below 50 psi.
The air gap mounting that comes with the unit only works with stainless steel or cast iron sinks not granite counters. When I inquired with GE about this, they said there were no plans to change this.
GE has since sold 80% of it's water products division to Pentair and it remains to be seen how this will bode for the Merlin.
The Merlin can only be operated on treated water from a municipal supply and will foul quickly on many well waters.
I recommend this only where you can service this yourself, have a working knowledge of reverse osmosis and can backwash this about once a month without paying for this service.

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Product Description:
GE Water has achieved a revolutionary breakthrough in the water treatment industry. Out-of-the-box thinking and years of research have produced a totally new point-of-use drinking water system. The new Merlin RO System features continuous-flow water production, so a storage tank is no longert required. The unit operates on line pressure (40 to 50 psi required), which eliminates the need for an electrical pump. The patented high-production, low-energy membrane purifies up to 720 gallons of water per day. This high capacity performance creates new opportunities for light duty commercial applications ? and great for the residential homeowner too! The system is NSF standard 58 approved, and has a compact design that can easily fit beneath the kitchen sink. Supplied with a complete installation kit that includes a designer faucet and all interconnecting tubing, the Merlin installs quickly and easily. At no additional charge we include a high quality ?RO-Pal? valve for a quality connection to your water supply - a $30 value! Covered by a 3-year limited warranty for residential applications, and a 1-year limited warranty in commercial application.

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