tap water

Proteus · #1 03-04-2012, 02:17 PM

What is the benifit of DI. Is RO enough

Reef Pilot · #2 03-04-2012, 02:19 PM

DI is the final step to get it down to 0 consistently. When it gets used up (resin color changes), the final output may be 1 or higher, and then you have to change it.

Proteus · #3 03-04-2012, 02:29 PM

I have been looking at different models and I see 5 stage and 7 stage. Is the seven just a longer lasting system. Sorry for my ignoance.

Reef Pilot · #4 03-04-2012, 02:36 PM

I use the 75 gpd Typhoon III model here, but with a few extra features, incl before/after TDS meters, 2 pressure tanks (so you can get quick flow for about 5 gals or so) and a pressure meter.
http://www.airwaterice.com/category/1/

A couple things I really like about it are; clear canisters to check on filters, flush and bypass valves (prolongs life of RO memebrane), the meters, separate RO line for drinking water, and the pressure tanks for quick flow (great feature). And the filters are just all standard which you can buy anywhere.

I don't think you need a 7 stage system unless you have really bad water.

Proteus · #5 03-04-2012, 02:43 PM

Thank you. My TDS is 127. But it's coming on spring. So there is dirty runoff

Reef Pilot · #6 03-04-2012, 02:46 PM

Quote:

Originally Posted by Titus99

Thank you. My TDS is 127. But it's coming on spring. So there is dirty runoff

If it's really bad, your sediment filter (1st one) will have to be changed more frequently.

Cubeman · #7 03-04-2012, 03:30 PM

Reef Pilot - thanks for the info on Langley water. I just moved here in December and am amazed at how quickly my RO/DI unit got dirty. I could go over a year on Vancouver Island without giving the unit a second thought. I don't have an inline TDS meter but think I'm going to have to spring for one.