R.O. Pressue Problem - Advice Needed

Meaty24 · 10/24/2008, 12:56 PM

My pressure on my R.O. is zero. THis happened once before and the solution was replace the cartridge in the first chamber. I did that and nothing happened.

I have very good water pressure. Any advice?

I can't make water right now and this is not good!

bstone · 10/24/2008, 01:42 PM

Something has got to be cloging your line if you have zero PSI. I would make sure your lines tot he R/O are not clogged.

patsfan1130 · 10/24/2008, 01:45 PM

How is this unit hooked up to your water source?

AZDesertRat · 10/24/2008, 01:53 PM

If its hooked up with a self piercing needle valve its possibly plugged at that point. Work the needle valve in and out several times.
If thats not it, remove both the prefilter and carbon(s) from the housings, screw the empty housings back on and try running just a bit of water through the system for troubleshooting. It won't hurt it for a minute or two.
Chances are your carbon is plugged if you only changed the prefilter. Contrary to what some will tell you, you wan the finest possible micron rating on your prefilter so it protects the more expensive and important carbon block. Carbon blocks are made up of billions of tiny pockets or pores and once plugged they cause pressure drop fpr one but more importantly they lose their ability to adsorb chlorine and VOCs.
I use a 0.5 or 0.2 micron pleated absolute rated prefilter with 10x the surface area of a normal filter and a single 0.5 micron Chlorine Guzzler carbon block. Pressure drop when new is only about 1-2 psi at a full 100 GPD and maybe 3 psi when they get changed out after 6 months or so. Unless you have bad sediment or particulate problems you should not have prefilters or carbons plugging.

Meaty24 · 10/24/2008, 02:27 PM

Very helpful. I will give it a whirl.

10/24/2008, 12:56 PM	#1
Meaty24 Registered Member Join Date: Jan 2008 Location: NYC Posts: 235	R.O. Pressue Problem - Advice Needed My pressure on my R.O. is zero. THis happened once before and the solution was replace the cartridge in the first chamber. I did that and nothing happened. I have very good water pressure. Any advice? I can't make water right now and this is not good!

10/24/2008, 01:42 PM	#2
bstone Premium Member Join Date: Jul 2003 Location: Indianapolis, Indiana (GO COLTS) Posts: 1,027	Something has got to be cloging your line if you have zero PSI. I would make sure your lines tot he R/O are not clogged. __________________ Don't believe everything you think! Current Tank Info: USED TO HAVE a 680 gallon Display Tank -120x48x30h- (Total System Volume 1100 gallons), and ALOT of other equipment.

10/24/2008, 01:45 PM	#3
patsfan1130 Premium Member Join Date: Mar 2004 Location: Woburn, Ma Posts: 2,010	How is this unit hooked up to your water source? __________________ My cat's breath smells like cat food Member of the Boston Reefers Society Current Tank Info: 75g lps, 90g sps, 120g mixed, 180 nem tank, 300g reef, 600g up & coming reef

10/24/2008, 01:53 PM	#4
AZDesertRat Moved On Join Date: Jan 2002 Location: NW Phoenix Posts: 16,621	If its hooked up with a self piercing needle valve its possibly plugged at that point. Work the needle valve in and out several times. If thats not it, remove both the prefilter and carbon(s) from the housings, screw the empty housings back on and try running just a bit of water through the system for troubleshooting. It won't hurt it for a minute or two. Chances are your carbon is plugged if you only changed the prefilter. Contrary to what some will tell you, you wan the finest possible micron rating on your prefilter so it protects the more expensive and important carbon block. Carbon blocks are made up of billions of tiny pockets or pores and once plugged they cause pressure drop fpr one but more importantly they lose their ability to adsorb chlorine and VOCs. I use a 0.5 or 0.2 micron pleated absolute rated prefilter with 10x the surface area of a normal filter and a single 0.5 micron Chlorine Guzzler carbon block. Pressure drop when new is only about 1-2 psi at a full 100 GPD and maybe 3 psi when they get changed out after 6 months or so. Unless you have bad sediment or particulate problems you should not have prefilters or carbons plugging.

10/24/2008, 02:27 PM	#5
Meaty24 Registered Member Join Date: Jan 2008 Location: NYC Posts: 235	Very helpful. I will give it a whirl.