RO/DI fitler 2 years old

albinooscar · 03/25/2006, 07:07 PM

2 years ago I set-up a 6 stage, 100gpd RO/DI filter after 1 year I changed the filter. Did not change the RO or DI filters. It's been 1 year since I last changed the filters and I finally bought a TDS meter. Much to my surprise the filter unit is bringing the TDS down from 232 to 7!

The meter is one that you hook up inline on both the in and out of the filter. The filter unit I bought from an outfit in Canada and is the second one I bought from them.

Ron

Unresistible Blue · 03/26/2006, 06:07 AM

You are likely running on borrowed time - be careful you don't allow the pre-membrane carbon stage to become exhausted - it will allow chlorine through to your membrane.

A partially clogged sediment prefilter can be used for a looooong time, however if not allowing free flow of water it will reduce the efficiency of the system.

03/25/2006, 07:07 PM	#1
albinooscar Registered Member Join Date: Oct 2002 Location: Elburn, IL USA Posts: 502	RO/DI fitler 2 years old 2 years ago I set-up a 6 stage, 100gpd RO/DI filter after 1 year I changed the filter. Did not change the RO or DI filters. It's been 1 year since I last changed the filters and I finally bought a TDS meter. Much to my surprise the filter unit is bringing the TDS down from 232 to 7! The meter is one that you hook up inline on both the in and out of the filter. The filter unit I bought from an outfit in Canada and is the second one I bought from them. Ron __________________ Fly who sits on toilet seat, gets off! >)))'><'(((< Never frown, Even when you're sad, Because you never know who is falling in love with your smile. Current Tank Info: 29gal FW - Goldfish - 55gal Planted FW - 55gal SW

03/26/2006, 06:07 AM	#2
Unresistible Blue Registered Member Join Date: Mar 2002 Posts: 1,029	You are likely running on borrowed time - be careful you don't allow the pre-membrane carbon stage to become exhausted - it will allow chlorine through to your membrane. A partially clogged sediment prefilter can be used for a looooong time, however if not allowing free flow of water it will reduce the efficiency of the system.