Vernon Water Quality

[Casey8]

hehehe ... if someone can prove it that I don't need it for my sps corals then I will shut down my R/O right away.

[mike31154]

Originally Posted by Casey8

hehehe ... if someone can prove it that I don't need it for my sps corals then I will shut down my R/O right away.

Well, I reckon it boils down to what the TDS in your water consists of. If it's all calcium or magnesium, you're good to go. There should be some reports available from your water supplier, city I suppose, that lists the parameters. Chances are there are traces of undesireables, so in the end an RO is a good investment. And at your low TDS numbers, the membrane should last for a looooong time.

[Casey8]

Yes, it does last for a long time, I can't even remember how often I need to change it. For LPS or softies corals, I had never used R/O before till I switched all to sps corals. I am afraid of having some kind of metal in the water that can cause a problem for my tank, so I decided to run an R/O to keep my mind at ease about it.

[RuGlu6]

Originally Posted by mike31154

Well, I reckon it boils down to what the TDS in your water consists of. If it's all calcium or magnesium, you're good to go. There should be some reports available from your water supplier, city I suppose, that lists the parameters. Chances are there are traces of undesireables, so in the end an RO is a good investment. And at your low TDS numbers, the membrane should last for a looooong time.

My RO/DI is 4 years old and still reading zero ppm on the out flow.
In flow tapwater is 12PPM in Port Moody.