mwrmma
Aquarium Advice Activist
I have an RO/DI filter that has been sitting for about 2 years. i am planning on replacing the sediment, carbon, and DI filters, but my question is do i NEED to replace the RO membrane? i know that i should test for TDS, but i dont have a meter. Since it is a membrane, i would think it should be ok, but would like some advice. i got out of SW a couple of years ago, and just ordered a 24 gallon nano cube, and cant wait to get back into this.
thanks,
Mike
thanks,
Mike