RO/DI Booster pump or not?

surge19us · 01/24/2009, 04:13 PM

I have 50 psi entering the membrane after the prefilters. Will I see a notable increase in the amount of pure water/time with a booster set to 70psi? I would like to be able to make more in the same or less time. I am set at 75gpd with a spectrapure 98% membrane.

theborgtank · 01/24/2009, 04:56 PM

Are you at 50 psi because of your water pressure or could it possibly be because of some dirty filters? just in case

I think most all of the spectrapure ro/di units call for more than 50psi to run at the listed gpd. I would think increasing the pressure would increase the gpd output. I would set the booster for the psi recommended in the instruction manual

surge19us · 01/25/2009, 09:57 AM

The prefilters are new the 50 psi is my standard water pressure.

jtma508 · 01/25/2009, 10:14 AM

The RO filters are optimized for working pressures in teh 70-80psi range. Your system would work alot better at the correct pressure.

Dustin_p · 01/25/2009, 11:09 AM

+1 Boost your pressure. You'll get a better rejection rate and more GPH.

01/24/2009, 04:13 PM	#1
surge19us Registered Member Join Date: May 2008 Location: Willard, Oh Posts: 656	RO/DI Booster pump or not? I have 50 psi entering the membrane after the prefilters. Will I see a notable increase in the amount of pure water/time with a booster set to 70psi? I would like to be able to make more in the same or less time. I am set at 75gpd with a spectrapure 98% membrane.

01/24/2009, 04:56 PM	#2
theborgtank Registered Member Join Date: Apr 2008 Posts: 68	Are you at 50 psi because of your water pressure or could it possibly be because of some dirty filters? just in case I think most all of the spectrapure ro/di units call for more than 50psi to run at the listed gpd. I would think increasing the pressure would increase the gpd output. I would set the booster for the psi recommended in the instruction manual __________________ I don't care if I got some tubes and a calcium reactor in plain view. I don't model my tanks to look like natural reefs. I'm growing corals like the borg would. Not a treky though. Current Tank Info: 6 seperate tanks, 2 QTs, holding 215 lbs live rock for the next project

01/25/2009, 09:57 AM	#3
surge19us Registered Member Join Date: May 2008 Location: Willard, Oh Posts: 656	The prefilters are new the 50 psi is my standard water pressure. __________________ Sean Current Tank Info: 120 gal 30 gal sump/fuge, ATB Econo 840 skimmer, 2 Vortech MP40w, AC Jr., 2-250watt MH 20K Radiums, Lumen Max 2 reflectors, 2 tek T5 retro actinic, Prime chiller, ATO/kalk reactor, drews dosers on two part.

01/25/2009, 10:14 AM	#4
jtma508 Premium Member Join Date: Jan 2008 Location: MA Posts: 1,232	The RO filters are optimized for working pressures in teh 70-80psi range. Your system would work alot better at the correct pressure.

01/25/2009, 11:09 AM	#5
Dustin_p Registered Member Join Date: Mar 2007 Location: South Dakota Posts: 101	+1 Boost your pressure. You'll get a better rejection rate and more GPH.