RODI water quality

[Wildman]

I asked around about this several months ago, but now have more information.

I get less than 100gal of top off water out of my filters. It is an air, water, and ice 5 stage unit. My DI resin depletes at a normal rate. I was using well water. I thought I was getting a build up of some kind of bacteria. Now I have switched to city water and get the same filter life. I know it is the filters because my coral will quit opening all the way. Then I will notice a rotten egg smell in my top off water.

Any guesses?

 

[Wildman]

No thoughts?? If not I will try the main forum

 

[Steve W]

Sounds like you've got some kind of dead spot in one of your filters. Something is being bypassed somehow. The rotten egg smell is a dead giveaway, only happens in anoxic conditions with very low flow.

Other than that, I have no idea. Do you have a lot of sulfur in your well water? Take a sample to the health department and ask them to analyze it.

Steve W

 

[holdyourlight]

Who is your water company? (KUB, first utility, ect.)

 

[Wildman]

water co. is Knox Chapman.

Not a lot of sulfur in either. I know the well water has high dkh. I figure the city water does too.

How can you get a dead spot in a RO unit? What can I look for?

 

[Wildman]

Oh yea, I sent a sample to Air Water Ice. They said it was because of the hardness of the water, but 100gl? really?