How to properly store RODI unit

[WhiskeyCoffee]

After I make a batch of DI water with my RODI system, is it OK to store the unit with the cartridges full of water or should they be drained?

 

[Coastie Reefer]

That's how I store mine. I make water about every two weeks. I just make sure to flush the unit for a few minutes before I start collecting water.

 

[WhiskeyCoffee]

When you say flush do you mean just let the system run for a bit or actually flushing the membrane?

 

[Coastie Reefer]

I have a BRS unit and it has a valve to flush the RO membrane. So I turn the valve and let it run for 3-5 minutes, then turn the valve and it starts making RODI.

 

[WhiskeyCoffee]

My AquaFX Barracuda is rated for 50GPD, however I just timed it and it made one gallon in approximate 15 minutes. That's at 72° and 80 PSI. If I did the math correctly, that's 96 gallons in 24 hours. Is that normal?

 

[Water Dog]

Sounds right... membrane efficiency is dependent on temperature and pressure. Your 50 gpd rating is probably based on 50 psi, you're running at 80 psi, thus more efficient.

 

[Psiber_Syn]

Shouldn't you run it at the recommended psi ? Would this damage the membrane or cause a high tds cause it's running through the system so fast? I always wondered this I turn mine on wide open it's a 100gpd I timed it and could get 125gpd out of it wide open not that I need to lol

 

[Water Dog]

No, it's fine running at higher psi. People run booster pumps that hit 80 - 90 psi with no issues.

 

[Psiber_Syn]

Thanx for the info