Loose Plaster

[dkoop]

I am getting small pieces of plaster (and a lot of it) in the net. Further more the water is cloudy. Can this be caused by the loose plaster? Can too much metal in the water cause the plaster to flake?

PH is 7.6
TA is 120
CYA is 110
CH is 2

 

[PoolGuyNJ]

If you have a newly plastered pool, this is expected. If not, you need to give us more info. A complete set of levels, including FC and CC as given from a proper test kit is required.

Scott

 

[dkoop]

Pool surface is old.
FC - 2
CC - 3

 

[PoolGuyNJ]

That CC level is very high. If its real, the pool needs a significant boost of FC for a period of time. What is your CYA level?

Scott

 

[dkoop]

That was my thought today. CYA is high also at 110. The pool is 10000gal so I plan on 4 gal of NACL to bust it. Sound right?
I put 2 gal in Friday and it helped but not enough. I'm going to turn off the tab feeder for a while and just go to liquid. I wish I could wait till winter to do it but it is cloudy now.

 

[dkoop]

But my question remains. Can loose plaster contribute to cloudiness?

 

[JamesW]

Are you sure that it's plaster and not paint?

 

[PoolGuyNJ]

With the CYA at 110, you will constantly have problems. You really need to dilute the pool first and get that level down. Otherwise, your throwing money at a bad situation without doing anything to help the bad situation.

If you add the liquid chlorine now, it will take a long time to see the level drop.

How are you testing the water?

Scott

 

[dkoop]

Yes it is definitely plaster. The chunks are a little less than 1/4" diameter by 1/16" thick.

 

[dkoop]

The CYA is high but I have pools with higher and they are fine. I would like it to be lower but will hold off till winter to do a draw down. The free chlorine has come down some and will continue to.

The real problem I found today, was the filter. The Grid Manifold had collapsed which I replaced today and adjusted the priming speed of the pump.

Lots of plaster at the bottom of the filter also. It'll need to be redone soon as I think it has probably been atleast 12 year.