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Mark9
08/25/2015, 08:11 AM
Have a MPDI-60.
Wanted to change it to a 90, so I bought the correct membrane, filters and flow restrictor.
My current membrane has a 2012 date on it, and I got it used with a tank I bought in March 0f 2014.
Went to change everything on the weekend.
Thought I'd do some tests first.
TDS in from water line - 57
TDS out of membrane - 3
TDS out after DI - 0.

Got me to thinking maybe I should get some more use out of this current membrane.

So, the big question is, how long can this membrane sit around until I use it? it looks to be dry.

SpectraPure
08/25/2015, 11:22 AM
What is the model number of the membrane?

Jeremy

Mark9
08/25/2015, 12:40 PM
Mem-0090

SpectraPure
08/25/2015, 01:00 PM
the shelf life is not established, but if its sealed in the bag it could be 5 years. I would say that you are safe.

Jeremy

Mark9
08/25/2015, 01:02 PM
Haven't opened it.
Thanks.

SpectraPure
09/01/2015, 01:43 PM
thank you!