Hi everyone. I am new to pool chemestry and find mysef learning with a new in-ground 1500 gal plaster spa.
I have been using a Taylor K2006c kit to establish my base parameters.
The contractor set up the spa with a table chlorinator. I am having trouble controlling the TA and PH. I have used acid twice to lower the ph from 8.0 to 7.6 with alkalinity about 90. However, every time that I use the spa (which is only twice or may be three times a week) and turn on the blower for about 15 to 20 minutes, the ph is right back at about 8.0-8.1. I tested this last week by adding acid and turning on the pump, then remeasured and it was at 7.4. I waited about two hours and got into the spa for 20 mins and remeasured right after I got out.
FC -3-4ppm
CC - 0
TA 90-100
PH- see above
CYA - 45
Calcium Hardness - 100 which is my second problem.
How long do I keep adding acid. It does not make sense that I have to do this twice a week or every time use the spa. So far, TA has not moved to much, but I suspect that if I keep adding acid, it will, and then I will have to be using baking soda to increase TA!!!
Any help will be appreciated. Thanks,
Ed
I have been using a Taylor K2006c kit to establish my base parameters.
The contractor set up the spa with a table chlorinator. I am having trouble controlling the TA and PH. I have used acid twice to lower the ph from 8.0 to 7.6 with alkalinity about 90. However, every time that I use the spa (which is only twice or may be three times a week) and turn on the blower for about 15 to 20 minutes, the ph is right back at about 8.0-8.1. I tested this last week by adding acid and turning on the pump, then remeasured and it was at 7.4. I waited about two hours and got into the spa for 20 mins and remeasured right after I got out.
FC -3-4ppm
CC - 0
TA 90-100
PH- see above
CYA - 45
Calcium Hardness - 100 which is my second problem.
How long do I keep adding acid. It does not make sense that I have to do this twice a week or every time use the spa. So far, TA has not moved to much, but I suspect that if I keep adding acid, it will, and then I will have to be using baking soda to increase TA!!!
Any help will be appreciated. Thanks,
Ed
