Cloudy Water After Alum

[kelemvor]

One thing you mentioned was Fiber Clear. This is not (despite what the pool store may have told you) the same as DE. I bought Fiber Clear last year to improve my sand filtration, I saw no improvement. I did see big clumps of what looked like wet newspaper on my sand when I opened the sand filter to winterize it. I don't kinow if Fiber Clear really works as a DE replacement in a DE filter but (in my experience) it does not work the same way in a sand filter - it appears to attract itself and just forms big clumps.

When PoolDoc says to use DE, use DE not Fiber Clear.

The fiberclear faq says this:
When I disassemble my filter to clean it, there is a gray gelatinous material that is difficult to remove. Why does this happen and how do I remove it from the filter?
This is usually the result of a non-compatible chemicals (clarifiers, phosphate removers, etc.) being added to the water. Fiber Clear is merely filtering those chemicals out of the water. Clarifiers, phosphate removers some types of algaecides or other types of sequestering agents should not be added to a Fiber Clear filter. If you inadvertently add them, you will need to disassemble the filter and clean it thoroughly according to the manufacturer's instructions. You can then add a fresh amount of Fiber Clear.

Not that I'm suggesting the stuff or anything...

[BigDave]

None of the @#$%$ has ever been in my pool. Fiber Clear is the weirdest thing this pool has seen. It may be fine as a DE replacement in a DE filter I don't know. In my experience it didn't help in a sand filter and left me with chunks of newspaper delivered in a thunderstorm and run over by the car. Perhaps it is incompatible with the DHMO that I use in excess.

Sorry, wits, for the Hijack. Follow PoolDoc's advice. He will help you. POP is the one thing you can't overuse.

[waterbear]

None of the @#$%$ has ever been in my pool. Fiber Clear is the weirdest thing this pool has seen. It may be fine as a DE replacement in a DE filter I don't know. In my experience it didn't help in a sand filter and left me with chunks of newspaper delivered in a thunderstorm and run over by the car. Perhaps it is incompatible with the DHMO that I use in excess.

Sorry, wits, for the Hijack. Follow PoolDoc's advice. He will help you. POP is the one thing you can't overuse.

Dave, have you ever added polyquat? It will react much the same with the cellulose fiber.

[BigDave]

No, WB, no polyquat. Water, Bleach, Borax, CYA, and a little Baking Soda... people and toys too. Started this pool new last year. The pool store that sold me the Fiber Clear intimated but wouldn't actually say that DE is illegal. I gave it a shot, I expected more. Perhaps my pump was too small to adequately backwash this stuff out of the 27" filter.