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Originally Posted by Tigger
How can you tell what your membrane is rated for?
My RODI unit is suppose to be rated for 50Gal/Day
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you have to figure out what pressure they are claiming 50gpd at. it could be 50GPD @ 50 or 60 or 100PSI. if the company isn't cheep they will use a 50GPD @ 50PSI... if they are cheep they will use a 50GPS @ 100PSI
This also explains why some people who buy 50GPD set ups only get 35 GPD out of them and some get more.
Basicly all TFT membrains have a max PSI of 120 PSI.. for a safe working pressure I would not go over 100PSI.
I just recived some new membrains from my supplier that are rated as follows.
75gpd@50psi, 100GPD@60psi and 160GPD@100PSI (this is one membrane not 3 different ones) I am rigging my RO up with two of these running at 100PSI so I will have a 320GPD setup.
Steve
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