CYA Is Disappearing

[mknauss]

Never use cal hypo. Ever.

Add some stabilizer now. I would add it in 10 ppm CYA amounts, let dissolve (use the sock method) and test after a couple days. Add more as needed.

 

[angheller]

What do you mean 10pm amounts?
The app says to add 1 lb 10 oz.

 

[mknauss]

Use a Target of 40 in Poolmath. Always do CYA in small increments.

 

[angheller]

Use a Target of 40 in Poolmath. Always do CYA in small increments.

Thank you. I have a sock of cya in the basket. I’m going to test the FC once the sun goes down and do an overnight test. I do have brown spots showing up in the pool during the day. Been struggling with that for some time so now that I have the CYA down it should be easier to SLAM if needed.
Last year my CYA was so high it was anlmost impossible to SLAM if I wasn’t here during the day.

 

[angheller]

My FC has already dropped to 14.5 from the first test which was 18 about 2 hours ago. Would that be normal with such a low CYA in Las Vegas?

 

[mknauss]

Yes. Our UV is really high. Will be that way through September. You will use 4-5 ppm FC per day.

A SWCG is a requirement as far as I am concerned.

 

[angheller]

Yes. Our UV is really high. Will be that way through September. You will use 4-5 ppm FC per day.

A SWCG is a requirement as far as I am concerned.

Eventually! Just trying to get a few more seasons out of the pool as it needs a complete overhaul and replanted.

 

[angheller]

Eventually! Just trying to get a few more seasons out of the pool as it needs a complete overhaul and replanted.

Replaster