RO waste water conservation

[ulmo]

This is a stupid question, but I'm going to ask it. How do you install one of these pumps? Can anyone post a link with this information, please.

 

[masterswimmer]

These pumps MUST be oriented properly. There are arrows pointing up, and labels for each inlet/outlet.

1 - The word Permeate is the word used in the industry for the good, drinking water that comes from your RO system.

2 - The word Brine is the word used in the industry for the waste water that comes from your RO system.

3 - The line that comes from your RO membrane and goes to your pressurized holding tank will go to the inlet labeled permeate.

4 - The outlet labeled permeate will go to your pressurized holding tank.

5 - The line that comes from your RO membrane and goes to your waste will now go to your brine inlet on the permeate pump.

6 - The line labeled brine out is your new waste line and goes to your drain.

Please note, the permeate pump needs to run on an RO/DI system that has a pressurized holding tank for it to operate properly.

Hope this helps.
Russ

 

[andylee]

Aren't these only useful if you are filling a pressurized reservoir? I have one for our drinking water system. It helps to overcome the pressure in the holding tank and thus increases pressure gradient across the membrane.

 

[masterswimmer]

In RED below:

These pumps MUST be oriented properly. There are arrows pointing up, and labels for each inlet/outlet.

1 - The word Permeate is the word used in the industry for the good, drinking water that comes from your RO system.

2 - The word Brine is the word used in the industry for the waste water that comes from your RO system.

3 - The line that comes from your RO membrane and goes to your pressurized holding tank will go to the inlet labeled permeate.

4 - The outlet labeled permeate will go to your pressurized holding tank.

5 - The line that comes from your RO membrane and goes to your waste will now go to your brine inlet on the permeate pump.

6 - The line labeled brine out is your new waste line and goes to your drain.

Please note, the permeate pump needs to run on an RO/DI system that has a pressurized holding tank for it to operate properly.

Hope this helps.
Russ

 

[lnevo]

In RED below:

Dont you want to bypass the DI for drinking water?

 

[masterswimmer]

Dont you want to bypass the DI for drinking water?

Absolutely. When hooking up the permeate, you're taking the permeate (good) water from the RO membrane (before it reaches the DI resin) and sending the permeate output from the permeate pump split to the DI resin and to the pressure tank. The RO membrane has two outputs, the other output, the brine (waste) water goes to waste. This way you're drinking the RO water from the pressure tank and the fish are getting the RO/DI water.

HTH
Russ