Cloudy Swimming Pool Water

[jgrav8]

Pool store numbers are in and there are differences for sure from what I measured:

TC = 18.87
FC = 15.85
pH = 7.4
TA = 51
CH = 135
CYA = 71

TA seems to be the first thing I need to get on. I am told this is a potential factor in cloudy water. Their pH measurement is normal - but I might tend to believe what my Taylor kit measured. Will address the TA first. Continue checking TC/FC at night and first thing AM.

The CYA is very high for what I typically see in my pool. I do not recall ever seeing anything above 60 and usually I have the opposite problem of needing to increase.

I measured with Taylor kit - combine water and chemical in 14mL bottle and pour slowly into small tube until small black dot disappears. Done drop-wise near the end.

[Denniswiseman]

You have CC of 3 so you need to keep slamming but at a higher rate of 28
Bear in mind that slam stands for SHOCK LEVEL AND MAINTAIN so you should check often during the day to maintain the correct level
Your cloudiness is probably causing you to lose the dot earlier
When you have finished slamming maintain the FC level at 8-10
Your pool info says you use chlorine tabs which contain CYA which will cause your CYA to rise

Use these common products to balance your pool, use Pool Maths to work out how much but don't do all at once so you don't go over

Liquid chlorine (sodium hypochlorite or plain bleach) Liquid chlorine only adds salt
Muriatic acid (hydrochloric acid) to lower pH and TA
Bicarbonate of soda to raise TA
Aeration will raise pH only
Soda ash will raise pH and TA