It seems like we have been able to identify the problem to a reasonable degree of certainty.I guess I was hoping for a "I've seen that before and its ............"
It seems like we have been able to identify the problem to a reasonable degree of certainty.I guess I was hoping for a "I've seen that before and its ............"
Most of us are homeowners with only a single pool to care for. Since we strongly discourage the introduction of metals in to pool water it's generally not something we would deal with. That doesn't mean those who have answered aren't well versed in water chemistry and able to diagnose issues.I guess I was hoping for a "I've seen that before and its ............"
Hi DonldsonMost of us are homeowners with only a single pool to care for. Since we strongly discourage the introduction of metals in to pool water it's generally not something we would deal with. That doesn't mean those who have answered aren't well versed in water chemistry and able to diagnose issues.
However...
I used to do pool maintenance and when I started managing one client's pool I encountered something almost identical. It was indeed caused by copper and calcium. In her case the copper was from a pH crash and the acidic water ate through her copper heat exchanger. That's why she hired me to manage her pool. Her calcium was also extremely high, though manageable. When I vacuumed the pool the filter grids were covered in very similar blue gunk. So I can confirm what is being said is accurate.
Hi JamesI suspect that the calcium hypochlorite is probably causing the copper to precipitate out in small batches with the insoluble compounds in the calcium hypochlorite.
It's probably going to happen for a while until the copper level goes down.
I would switch away from calcium hypochlorite and go to sodium hypochlorite.
I would stop using the dry acid and switch to muriatic acid.
I'm sure the other people on here much smarter than me are on the right track with the copper... but is there any way it could be from your liner? Did you say it's some kind of pvc fabric liner? Try taking a rag and rubbing it hard against your liner under the water line, and see if it comes up blue.Yes it is blue
Probably. Metals change the flame color.does copper in this form show up in a flame test? I am having flashbacks to College Chem