RODI booster pump placement

Dryanimtt · Feb 3, 2021

Wondering if someone can help me with the placement of a booster pump on my rodi system. It's a home masters 5 stage with faucet, bladder tank, and permeate pump. I added a brs di canister just after the ro membrane. I emailed the company and they told me to place the pump just after the sediment filter and put the shut off switch just before the bladder tank but with the addition of the di canister that doesn't seem right. A pic of my setup and the other pic is what the manufacturer sent me.

Gtinnel · Feb 3, 2021

I have my booster pump before any of the filters and it hasn't been an issue. Now you have me questioning if I should move mine.

ca1ore · Feb 3, 2021

I was told to put the booster pump between the mechanical/sediment pre-filters and the RO membrane. Pressure shutoff after the DI stages. Curious why you'd use a bladder tank?

Dryanimtt · Feb 3, 2021

ca1ore said:
I was told to put the booster pump between the mechanical/sediment pre-filters and the RO membrane. Pressure shutoff after the DI stages. Curious why you'd use a bladder tank?

Well it's a storage tank for ro water to my kitchen faucet.

Gtinnel · Feb 3, 2021

Dryanimtt said:
Well it's a storage tank for ro water to my kitchen faucet.

Is the faucet for drinking water? If so you aren't supposed to drink rodi water.

KStatefan · Feb 3, 2021

Look at hook up diagrams for systems that have the components you have spectrapure, buckeye hydro, BRS

ca1ore · Feb 3, 2021

Dryanimtt said:
Well it's a storage tank for ro water to my kitchen faucet.

Ah, silly me, I just assumed you were using it for your reef tank .....

Hydrored · Feb 3, 2021

Before the membrane, pressure switch after the output of membrane after any type of auto shutoff, I just got done doing an upgrade and that's what aquatec had advised

TheDuude · Feb 3, 2021

Before the membrane is recommended as this will protect the pump from incoming sediment. I have a whole home sediment filter so I chose to install mine between the supply line and the first RO filter and have not had any issues. I also have 20 gallon bladder tank which holds just RO for drinking / cooking. When I make water for my tank I do not like to drain the RO water from my bladder which seems to build up some PPM so I have a valve before the pressure tanks as well. When I need water for my reef I close the valve between pressure tank and RODI system then open the valve allowing product water to go through DI and into my holding tank.

Added benefit is that I can still pull water from my 20 gallon bladder at my fridge, sink, and ice maker while the system is also producing RODI for my reef.

Dryanimtt · Feb 3, 2021

Gtinnel said:
Is the faucet for drinking water? If so you aren't supposed to drink rodi water.

This i know, I'm bypassing the di when used for drinking water.

Dryanimtt · Feb 3, 2021

Hydrored said:
Before the membrane, pressure switch after the output of membrane after any type of auto shutoff, I just got done doing an upgrade and that's what aquatec had advised

Ok cool, I have an aquatec coming

Dryanimtt · Feb 3, 2021

TheDuude said:
Before the membrane is recommended as this will protect the pump from incoming sediment. I have a whole home sediment filter so I chose to install mine between the supply line and the first RO filter and have not had any issues. I also have 20 gallon bladder tank which holds just RO for drinking / cooking. When I make water for my tank I do not like to drain the RO water from my bladder which seems to build up some PPM so I have a valve before the pressure tanks as well. When I need water for my reef I close the valve between pressure tank and RODI system then open the valve allowing product water to go through DI and into my holding tank.

Added benefit is that I can still pull water from my 20 gallon bladder at my fridge, sink, and ice maker while the system is also producing RODI for my reef.

Where did you place your pressure switch?

TheDuude · Feb 3, 2021

Dryanimtt said:
Where did you place your pressure switch?

After pressure tank but before the T fitting that branches off to the DI that way the pressure switch will shut off the pump when the RO bladder is full or when my ATO res is full when switched to DI output.

Dryanimtt · Feb 3, 2021

Ah ok, but for me at the moment i have the di T'd in just after the ro membrane which is before my storage tank. Since I have a carbon filter just before my storage tank to restore taste/ minerals to the water to drink. Any idea then where i should put the pressure switch? I imagine i should put it just after the T for the di, maybe lol.