GE Merlin Tankless RO Water System (RO Units)

ge merlin ro unit

This RO Water System is recommended for:

This is a fresh GE Merlin - Revision D model.
Rejection of Salts and Impurities: Typical TDS Rejection rate is around 90% with new membranes. A standard RO system has a typical TDS rejection rate of around 98.5%.
Install on potable cold water line only.
According to GE, this unit should not be connected to a Pressure Tank.
If you wish to use the Merlin to fill an open Atmospheric Storage Tank, you will need a Mechanical Float Valve to turn of the water flow when the water tank gets full. This works well without the Merlin Booster Pump installed.
System requires at least 50 PSI of water pressure to function and turn off properly. Less than this pressure and the unit may constantly run to drain.

Stage 1: (1) Carbon Block Prefilter, (5 micron),typically lasts 6 months or 5,000 gallons.

Consumer Tips: If you have a lot of particulates in your water, It is recommended that you precede this system with an additional (4.5" x 10") 5 micron Nominal Sediment Filter to give the unit extra protection.

For heavy use (>20 gallons purified water per day) GE recommends adding a 4.5"x10" Matrikx CTO/2 Carbon Block Filter preceding the GE Merlin System. Feedwater intake tubing is 1/2" O.D.

The optional Booster Pump should only be a GE Merlin Booster Pump. This is only rated for intermittent Residential Use, not continuous duty commercial use.

Notice: Consult your plumber or refrigerator manufacturer about connecting an RO system to your specific refrigerator model. If and when a booster pump is necessary, only use a Variable Speed Pump, and find out if you should use one that's regulated at 40 PSI or 60 PSI.

You can also use this RO system to fill any size Atmospheric Storage Tank (zero pressure - open air) 24 hours a day (720 Gals./ day @77°). If you wish to use the Merlin to fill an open Atmospheric Storage Tank, you will need a Mechanical Float Valve to turn of the water flow when the water tank gets full. This works well without the Merlin Booster Pump installed.

Maximum Flow Rate is 1/2 GPM at 50 PSI (with 77° F. water) under normal conditions.

Flow Rate is slower for colder water. For 50 degree cold water you will need 70 PSI pressure to get this same 1/2 GPM flow rate, or just accept a slower flow rate.

Typical RO water recovery: 23.7% product water (purified water), and 76.3% waste water at 50 PSI and 77° F.