Frustrated

[CarlD]

And if it's not PolyQuat, don't use it. PolyQuat is not a brand but rather a type of algaecide and clarifier--the only algaecide we recommend (besides, of course, chlorine).

You definitely have an algae bloom so it would make it easier for you to fight it to read up on algae here on Pool Forum. Meanwhile, since it IS an algae bloom, don't waste your time and money on PolyQuat--your daily backwashes will dump it out. Concentrate on hammering it with lots of liquid chlorine/bleach

[staclear]

yesterday, I dumped 6 Gallons of Bleach, tested Chlorine last night and this morning, did not lose much chlorine. While i vacuumed the white Cristal chunks floated to the top, WHAT IS THAT? I heard it's water mold, if so how to clear it up? i got picture but don't know how to upload to the forum .ps: water still cloudy, blueish light green.

[CarlD]

Test numbers, please!

[staclear]

Cl 10
ta 100
ph 7.6
cya 55

[aylad]

A FC of 10 is not high enough to clear up the green--with a CYA of 55 you need to have it consistently at 20 ppm. The more it drops, the longer it's going to take to clear up. Also, you said you "didn't lose much chlorine" overnight--how many ppm are you talking about in loss?

If the white in the bottom of the pool is crystals, then it's not water mold--I think it's probably undissolved cal-hypo that's been sitting on your liner all this time, since it's really difficult to pre-dissolve it. Vacuuming to waste or to filter is the only way you're going to get it out of the pool.

Get your chlorine back up to 20 and hang in there!

Janet

[staclear]

but every time I add chlorine it just sits at the top of the water. it does NOT dissolve slowly like in previous years. this is the first year that I am experiencing this problem

[chem geek]

Unless your Calcium Hardnes (CH) is low, you shouldn't be using Cal-Hypo anyway. You didn't report your CH number -- do you have a good test kit such as the Taylor K-2006?

Cal-Hypo often has trouble dissolving well and can be pre-dissolved in a bucket of water first before adding it to the pool. However, it would probably be better for you to be using either chlorinating liquid or 6% unscented bleach instead.

[aylad]

I would switch to bleach, that will stop the problem of it floating to the top. What is your CH? It's entirely possible that the CH has gotten so high that it just won't dissolve anymore.

Are you pre-dissolving it in a bucket of water before adding it to the pool? Have you tried pre-dissolving and then adding it through the skimmer instead of straight to the pool?

Janet

Ah, Chemgeek, we posted at the same time.....but at least it's proof that the advice is solid!!