RO unit cold vs hot water.

[Seasonedreefer]

Is your water that clean to begin with? How can you get 0 out of the RO membrane? I think you might want to check your TDS meters against a seperate and different TDS meter. I've never heard of a membrane that has a 100 percent removal rate.

It's not real bad IMO I actually ran a 30g on dechlorinated tap water for a few years no problem. I also have four stages before the RO membrane though to so I'm sure that helps remove quite a bit of stuff too.

 

[mojo]

Hot water does break down the RO membrane. Corey I would not run hot water through the membrane. Very bad idea....

Now if you want instant RO water there are other units RO units that will be more of an on demand like you are looking for.