How many lbs. of baking soda do I need to add to my 24ft around 5ft deep swimming pool to raise the pH level?
It is at 0 right now says the test.
Thanks for the question James
For a 24X5 above ground pool, you looking at about 13,500 gallons. I will assume you have an above ground pool. First, I would encourage you to test the pH level again and be sure it's 0ppm. I use a Taylor FAS-DPD K-2006 pool test kit. This will give you the most accurate readings.
The pH of muriatic acid is approx. 4.5ppm. You might not be testing your pool correctly. Be sure you're testing properly with the right pool tester. Once this is done you can email back and give the pH level.
Unless you have an extremely large pool, 9 lbs. of bicarb. would make some kind of dent in either the pH or alkalinity.
Have your water checked at your local pool store as well. Get them to test for everything:
Chlorine, CYA (cyanuric acid/stabilizer), pH, Alkalinity, Calcium Hardness, Metals (iron and copper), Total Dissolved Solids
Don't add calcium because because the hardness is on the high side.
You want to get some CYA into the pool. Right now you're using an un-stabilized form of pool chlorine. You need to get some Dichlor powder which is a stabilized form of chlorine, then use the Trichlor tablets to keep the cyanuric acid level in check.
Switch over to liquid chlorine once the cyanuric acid level has been reached.
Be careful when using Dichlor as it can get out of hand quickly. For every 10ppm of chlorine added with Dichlor, you'll raise the CYA by 9ppm. For every 10ppm of chlorine added with Trichlor tabs you'll raise the CYA by 6ppm.
Shock with Dichlor in the evening then retest the chlorine and CYA in the morning. Keep doing this until the pool has a CYA level between 30 - 50ppm.
Once you have this level, switch to liquid chlorine. Keep filtering 24/7 while this is going on. Take a water sample to your local pool store and have them run tests again.
Once you have that, come back and post your readings.