Installing Your Pure Water Products Reverse Osmosis Unit with Permeate Pump

This is an easy installation, completely color coded. These instructions describe connection of the unit to the permeate pump only. Refer to standard instruction sheet for installation of faucet, inlet valve, drain saddle, etc.

Note: The instructions below pertain to installation on one of our new, Black & White reverse osmosis units that has been set up to operate with permeate pump. It is possible to retrofit existing units for use with the pump, but some special instructions are needed. Please call for information before purchasing. (940) 382-3814.

1. Start by mounting the permeate pump to a wall near the main body of the unit. Be sure to observe the up/down arrows on the pump.

2. When the pump is securely mounted and the unit is in place, make the connections indicated on the color coded installation. Use plug-in-elbows provided if an elbow fitting is needed. Plug the tube directly into the pump if a straight fitting is needed.

3. Here is a summary of the connections:

Yellow Tube: connects the Brine Out port of the permeate pump to the drain saddle.

Black Tube: Connects the Brine Port of the RO membrane to Brine In port of the permeate pump.

Orange Tube: Connects the unit's post filter (white vessel on most units) to the Permeate Out port of the permeate pump.

White Tube: Connects the permeate port of the reverse osmosis membrane to the Permeate In port of the permeate pump.

No special instructions are needed for startup and operation of the pump. Just follow instructions for regular reverse osmosis startup and the pump will take care of itself. It is important that the pump remain at all times in the position shown for proper operation.

Installing a Permeate Pump on an Existing RO Unit

By far, the best installation involves taking your RO unit’s auto shutoff device completely out of the system and allowing the permeate pump to shut the unit off when the tank is full. That way, you’ll get full line pressure into the tank.

Here’s how you do it. You may have to replace some tubes.

  1. Remove the auto-shutoff valve completely from the unit.
  2. Connect the Outlet tube of the final prefilter to the Inlet of the RO Membrane.
  3. Run the Permeate Outlet from the RO membrane directly into Permeate In port of the permeate pump.
  4. Connect the Permeate Out port of the permeate pump to the In Port of the Post Filter.
  5. The Tee that connects the storage tank to the permeate line should be somewhere between the permeate pump Permeate Out port and the In Port to the Post Filter.
  6. Cut the existing Brine or wastewater tube of the unit and route it through the Brine In and Brine Out ports of the pump. The Brine In must be downstream from the flow restrictor, and if the unit has an air gap faucet, the pump must be installed in the ΒΌ” (smaller) line.
  7. Be sure to position the pump so that it conforms to the instructions on the pump (be sure that UP is Up), and be sure that no lines are crimped.

The pump will make an intermittent thumping sound when it operates. This is normal. No priming or special treatment is needed. Just plug it in and let it go to work.

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