This is my first post. I have never own the pool before and have some questions about the upkeep. The house that I recently purchased has a kidney shaped pool.
The pool was not covered during the fall and winter. During that time we have several fires in the area and strong Santa Anna winds that blew the dust and ash in to the pool. The pool had the Polaris cleaning vacuum, but it would not pickup the ash and dust so I unplugged it and bought Barracuda 4 system that sweeps the floor pretty good. I already cleaned the filter once and the current filter pressure is about 12 PSI. The filter runs 8 hrs everyday from 8am to 4pm. The previous owner had some leftover chemicals, so I was adding chlorine every couple of days. It seems that everything was OK. About a month ago I notice green algae growing on the left side wall by the steps. I shocked the pool several times and scrubbed the walls with the brush, but after several days the algae would comeback. Recently the leftover chemicals ran out and I had to buy more. Not reading the information on the web, I went to the Home Depot and purchased two buckets of Chlorine (the powder and tablets). I was shocked, surprised and amazed that two buckets of chlorine would cost me over $160. Luckily I did not opened the buckets yet. I have the test kit that can measure pH, Chlorine, TA, Bromine. In order to know how much chemicals to add I need to know the water volume of the pool.
I took the measurements yesterday,
My Free Chlorine is approximatly 0ppm but my test gauge says that ideal result is between 0 and 0.5 ppm.
The Total Chlorine is 5.0. It says that is TC > FC, then I need to shock the water.
The pH is 7.6ppm
The TA is 300ppm.
1. How do I calculate the volume of the kidney shaped pools? My guesstimate is 13,000 to 15,000 gal, but I am not sure.
To lower the TA, I will need to reduce the pH level to 7.0 and then aerate the pool to increase the pH.
2. How do I aerate the pool.
My test kit does not have the Cyanuric Acid (CYA) test, but I will get the Leslie's test kit today. I guess I need to know the CYA level for shocking the pool. I looked at the Chlorine/CYA Chart by Chemgeek but so far I am still not sure how to read it.
3. If the CYA is high (above 60), is there a way to reduce it w/o draining water? I do not have the pump to take the water out.
You suggestions are greatly appreciated and sorry for the long post.