Opening with very high ph and mustard algae

[greenwich3]

Water looks 100 percent better today and is very cloudy but no longer disgusting. I will get reading after work and buy acid after work. I ran the filter on recirculate last night but changed to filter this morning.

Hayward Sand Filter. S270T2. Pro Series High Rate Sand Filter

Jandy 2.5 HP Uprate pump. MHPU Series - could not find model number yet

Thank you again for helping me!

[greenwich3]

Here are the readings I got today. Put in Tabs in chlorinator as well as lots of bleach and liquid chlorine. Put in acid today as well.

FC 2.4
CC .8
TA 70
PH 8
Calcium 200

[PoolDoc]

Given your low TA, I wouldn't try to push the pH below 7.6 right now. Have you tested your stabilizer level? That's critical to know.

[greenwich3]

Cya is 40

[PoolDoc]

Then, till the algae is gone, try to dose to 15 ppm (15 gallons of 6% bleach) and repeat before levels go below 5 ppm.

[greenwich3]

First of all thanks for all your advice

Was away for 5 days and had to do what I could before I left.

FC and CC need major dose when sun goes down

ph 7.4
TA 50ppm
CH 130ppm

CYA - The black dot does not disappear even after I filled the tube to the top.

Thanks!