RO/DI Question?

[dad2gray_n_evie]

I have a Kents Hi-S System and its been in storage for 2.5 year. I was wondering is the membrane still any good or does it need to me replaced?

[atvdave]

If the filters where stored dry, I'd say there shot.

But the only way to tell is run about 10g of good water through it and test the TDS.

If >95% I'd say it's good. But I'd still change the pre filters regardless.

[dad2gray_n_evie]

thanks for the info