How long does your RO membrane last?

[alfieferenzo84]

just a note if you mix hot and cold and somone flushes the toilet or anything it will change and burn your membrance rate up i found out the hard way, also now that i run pure cold water i dont notice much more waste so just run cold water and put a heater in it,

my tds out of tap is about 130-145 and after the membrance i see 0-1tds i quit using the di unit sense i am just a fowlr no sense in paying all that in refill for di as it dont last long for some reason?

Hope i helped a little

 

[Buckeye Hydro]

There is a nice calculator available where you can plug in your water temperature and water pressure and it will calculate what your membrane should be producing.

Russ

 

[aninjaatemyshoe]

Running the tubing through the sump first is a great ideal But unless you're dealing with heavy evaporation, I doubt it would do much cooling. Doesn't matter that the tube is made of plastic because the flowrate through the tube is so slow. I'm sure that the water in the tube is heating up very close to aquarium temperature before hitting the membrane.