Filling pool tomorrow

[xJustin]

150k gallons.

And it looks like the upstairs guys don't want to spend any money, so meh. Looks like the granulated shock is all we got. I hate using it because it doesn't mix well and settles as a sludge on the floor.

[Watermom]

Bleach is not practical for this pool. Ben is the best one to advise you on a commercial pool. He is the only one who has the experience dealing with these huge volume pools. He'll be around later.

[BigDave]

What's in the granulated shock, cal-hypo or dichlor?

[xJustin]

Calhypo. In previous years we've had to use 50 lbs a day just to maintain a steady level of chlorination. We have two chlorinators that use the round tabs, but I'm not sure if they work full strength. One seems to empty out the tabs daily while the other takes about a week(both turned on the max setting)

[BigDave]

Can you dose the cal-hypo into the skimmers to have it dissolve on the sand in the filters? If you do, be darn sure the chlorinators are on the outlet of the filter and there are no other chemicals before the filter. Cal-hypo can mix with dichlor and triclor and CYA to go boom.
Try swapping the inlet lines between the chlorinators and see if that moves the problem. If so, maybe it's the tap or a crushed line on the inlet side. If the problem doesn't move then maybe it's a similar problem on the outlet side.

[xJustin]

I'll switch up on the chlorinators, and they are in fact on the return side.

On the skimmer, everywhere I read says pouring shock into skimmers is a nono, is this not true?

We took some water to the local pool supply shop for testing and they sent us home with $600 worth of Chems.

100# calcium
2 bottles of "phosfree" or something along that line
200# sodium bicarbonate
50# of stabilizer

Does this seem plausible? Or did we get oversold

[Watermom]

Big Dave -- this thread is one that we need to let Ben handle, please.

Justin --- please wait on Ben to advise you on this.

Thanks.