Clean It Up

UK Window Cleaning Forum => Window Cleaning Forum => Topic started by: AJ on February 01, 2008, 04:08:54 pm

Title: Flushing my RO
Post by: AJ on February 01, 2008, 04:08:54 pm

How do you flush an RO? and what kind of difference can it make to the system.
Its a 40-40 and the levels have risen dramatically, from 6ppm to 200ppm in a month of replacing the membrane. I have been told that flushing it could sort it out.

Hope smoeone can helps cos its driving me mad.

Cheers guys.

Title: Re: Flushing my RO
Post by: Alex Gardiner on February 01, 2008, 04:33:01 pm

Turn the flush valve to the open position and leave running for several hours.  This is the valve that sets your production/waste ratio.  Perhaps your new membrane prefers a higher waste ratio setting.  Ideally you should flush a 4040 membrane for at least 10 minutes before each major fill.

Title: Re: Flushing my RO
Post by: frames to panes on February 01, 2008, 08:10:54 pm

Alex, how long for a 300gpd?

Title: Re: Flushing my RO
Post by: Tim Rose on February 01, 2008, 08:12:06 pm

fwiw, I do it once a week.  I run for about half an hour.

Title: Re: Flushing my RO
Post by: Mo on February 01, 2008, 09:02:22 pm

I do it every day after fill for about half hour :D
Mo 8)

Title: Re: Flushing my RO
Post by: Alex Gardiner on February 01, 2008, 09:14:06 pm

Quote from: DJW on February 01, 2008, 08:10:54 pm

Alex, how long for a 300gpd?

I would recommend about the same, 5-10 minutes before each large fill (1000litres).

Title: Re: Flushing my RO
Post by: rhys11 on February 01, 2008, 09:18:44 pm

how dose a salt back wash work and is it worth buying one??