Flushing an RO membrane?

cracker · 12-24-2007, 10:52 PM

I don't get it. In which direction do I divert the water? Thanks

Witfull · 12-25-2007, 04:22 AM

it depends on how your RO is built. most are by turning the flush lever 90degrees.

cracker · 12-30-2007, 02:15 AM

No flush valve on my unit. I thought I had to reveres the flow over the "outside" of the membrane. Looking at the flush kits I didn't see how it was possible. I think I got it now. When flushing the water flows in the same direction. All You need is to bypass the resticter( mine is an adjustable valve on the waste line. This reduces the pressure below the point it forced thru the ro membrane. The Filmtec ro is rated at 50 psi. I just removed the valve on the waste line water runs thru at 20 psi. Geez I can complicate things!

AQTCJAK · 12-30-2007, 12:25 PM

I just replace them I have found flushing doesnt do that much for me anyway possibly because of the amout of RO I make

cracker · 12-30-2007, 06:39 PM

I read that flushing wasn't that effective but I figured it wouldn't hurt. I make around 50 gls a week so thats about 600 gls since I replaced all the filters 3 months ago. Probably no where near what You go thru. I have never gotten below 2ppms. ppms are up to 5 now so it's time. My tap runs at 135 ppm usually.

12-24-2007, 10:52 PM	#1 (permalink)
cracker Acropora Join Date: Jun 2005 Location: North East Florida Posts: 1,717 View Gallery Karma Komment	Flushing an RO membrane? I don't get it. In which direction do I divert the water? Thanks

12-30-2007, 02:15 AM	#3 (permalink)
cracker Acropora Join Date: Jun 2005 Location: North East Florida Posts: 1,717 View Gallery Karma Komment	Re: Flushing an RO membrane? No flush valve on my unit. I thought I had to reveres the flow over the "outside" of the membrane. Looking at the flush kits I didn't see how it was possible. I think I got it now. When flushing the water flows in the same direction. All You need is to bypass the resticter( mine is an adjustable valve on the waste line. This reduces the pressure below the point it forced thru the ro membrane. The Filmtec ro is rated at 50 psi. I just removed the valve on the waste line water runs thru at 20 psi. Geez I can complicate things!

12-30-2007, 12:25 PM	#4 (permalink)
AQTCJAK Tiger Shark Join Date: Aug 2007 Posts: 6,936 View Gallery Karma Komment Add yours!	Re: Flushing an RO membrane? I just replace them I have found flushing doesnt do that much for me anyway possibly because of the amout of RO I make __________________ A Wiseman once said build a stage add a pole & they will dance - Jack 2007 www.aquaticaggression.com Projects & Chronicels http://www.reefsanctuary.com/forums/...car-buffs.html http://www.reefsanctuary.com/forums/...nts-tanks.html

12-30-2007, 06:39 PM	#5 (permalink)
cracker Acropora Join Date: Jun 2005 Location: North East Florida Posts: 1,717 View Gallery Karma Komment	Re: Flushing an RO membrane? I read that flushing wasn't that effective but I figured it wouldn't hurt. I make around 50 gls a week so thats about 600 gls since I replaced all the filters 3 months ago. Probably no where near what You go thru. I have never gotten below 2ppms. ppms are up to 5 now so it's time. My tap runs at 135 ppm usually.

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