Got the Walmart OTO kit and here are my results:

CL -- the water was really clear after I added the 5 drops. It doesn't even look like it's the lowest level, which is .5

BR -- same results as above; the lowest level is 1

PH -- looks to be between 7.8 and 8.2; so I'd say it's about an 8

The kit did not test for CYA.

Based on the kit, it looks like my PH is okay, but my CL and BR are too low? What should I do?

I estimate my pool to be about 15,000 gallons.

Thanks.