Drain RO/DI units in between using?

[magic]

I just purchased a ro/di unit (in the last group buy). I just finished filling my containers and I won't be using it for about 2 weeks. Do I drain the unit in between, leave it filled? Thanks

 

[Candi]

I don't know if its what you're supposed to do or not ??? but I've always left mine filled (I use it hooked to the kitchen sink when I use it, stored under or in the garage when I don't) my TDS is always zero.

 

[MikeNapoli]

I've never drained mine and my tds is less than 4. I wouldn't worry about it.

 

[pgordemer]

Your membrane must never dry out, even when new it is shipped with a preservative liquid in it before they seal it up.