It's easier to figure bleach than powders and pucks.

Here's how to figure:

1 gallon of regular (5.25%) bleach adds EXACTLY 5.25 ppm of chlorine to 10,000 gallons of water.

1 gallon of ultra bleach(6%) adds EXACTLY 6ppm of chlorine to 10,000 gallons of water.

However, 6% is usually sold in 3-quart jugs--or 75% of a gallon. You have just about 70% of 10,000 gallons--7,000 gallons. Therefore one 3-quart jug of ultra will add a bit more than 6ppm of chlorine to YOUR water.

I'm guessing you actually have only 6,900 gallons in the pool. In which case, that 3-quart jug of 6% ultra will add exactly 6.5ppm of chorine to your pool.

Adjust acordingly!


Hope that helps.

With borax, I find it's a bit of a guessing game. When my pH is 6.9, I use 1/4 of a box (about a pound) to raise it to around 7.3 on my 20,000 gallons. Adjust down accordingly.

As for the third b, baking soda, you use EXACTLY the same amount as the "total alkalinity raiser" directions, because it's EXACTLY the same stuff--only cheaper.