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Ro need new membrane


Johnwindow1987

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Johnwindow1987

Hi everyone need a bit of help I replaced pre filters and resin today. My TDS from my tap is 120ppm after membrane I’m getting 25ppm then 0ppm after resin. Is this ok or dose the membrane need changing?? Running a 80psi boost pump aswell thanks for any help cheers 

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Posted (edited)
7 minutes ago, Johnwindow1987 said:

Hi everyone need a bit of help I replaced pre filters and resin today. My TDS from my tap is 120ppm after membrane I’m getting 25ppm then 0ppm after resin. Is this ok or dose the membrane need changing?? Running a 80psi boost pump aswell thanks for any help cheers 

No, your tds after your membrane should be around 3ppm. Your membrane is working at 79% efficiency.

Whats you waste to pure ratio when you are producing water?

With 120ppm you should be fractional over 1 waste to fractional under 1 pure - 55% waste to 45% pure, perhaps 60% waste to 40% pure.

 

Edited by spruce
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Johnwindow1987
40 minutes ago, spruce said:

No, your tds after your membrane should be around 3ppm. Your membrane is working at 79% efficiency.

Whats you waste to pure ratio when you are producing water?

With 120ppm you should be fractional over 1 waste to fractional under 1 pure - 55% waste to 45% pure, perhaps 60% waste to 40% pure.

 

Hi spruce thanks for that dose This look a good price for this membrane 

CBB586B2-F2B0-4979-B0A3-54BDA0B989C2.png

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