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System Operation 

During operation, the 5 Stage Drinking Water RO system will produce up to 75 gallons of purified RO water per day or approximately three gallons 
per hour.

•  Hot water should never be used

 with the RO system as it can damage the RO membrane and may also contain additional contaminants.  For 

this reason, only water from the

 

cold

 

water supply should be used.

•  For optimal results, water pressure should be at least 50 psi entering the membrane. If operating pressure is under 50 psi, a reduction in water 

production and a lower rejection rate may be experienced.  If water pressure is approaching 35 psi, consider adding a booster pump to increase 
performance.

•  A ratio of 4:1 waste water to purified RO water is normal. The waste water from the black line contains the dissolved solids from the source 

water and should not be used in your aquarium.

Set-up & Maintenance:

2

Choose your connector/adapter from the below options, and install.

1

Turn the water supply to the connection point off.

Drain saddle clamps are installed on standard PVC 1½” OD drain pipe, above the trap and as close to the sink 
drain as possible. Do not install the clamp close to disposal outlets or clogging may occur.

For this installation you will need a magic marker, adjustable wrench and a drill with a 3/8” drill bit. 

1.  Separate the drain clamp and use the clamp half with the push connect fitting as a guide to find a suitable 

location for the clamp.  The location should be at least a few inches above the trap and as close to the sink 
drain as possible. Place a mark where the hole will be drilled. 

2.  At this mark, drill a 3/8” hole through 

one

 side of the pipe and clear away burrs.

3.  Peel the backing from the gasket in the parts bag. Position the gasket centered around the freshly drilled hole.

4.  Position both halves of clamp on the pipe. Be sure to line up the drain clamp hole with the hole in the pipe. Secure with included bolts and nuts.

3

Optional

 - Install Drain Saddle Clamp

Installing the inline ball valve is optional. The ball valve is commonly used to turn the RO/DI system on and off.  To install the ball valve:

1.  Cut the 

red

 water supply line in an easily accessible location. Be sure that the cut ends are clean, even and smooth.

2.  Firmly push the ends of the hose into the ball valve.

4

Optional

 - Install Inline Ball Valve

Garden Hose/Utility Sink Adapter

 

NON-PERMANENT

•  Thread onto a hose, laundry sink faucet or fittings 

with similar threads.

•  Provides a quick connect fitting for the RO/DI 

tubing.

•  Great option for quick installation.

EZ Angle Stop Adapter 

SEMI-PERMANENT

•  Under-sink, out of the way connection. 

•  Fitting only works on flexible water line.

•  Installs inline between water shut off valve and flexible 

tubing to faucet.

•  Compatible with 3/8” thread size 

(other sizes sold separately)

•  Removeable.

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