Boric Acid? I thought that was for eye-wash and sold in pharmacies.

We generally suggest Muriatic Acid, which is sold in hardware stores, for lowering pH. It's Hydro Chloric acid so it doesn't add anything to your water you don't want. Borax is what we recommend for raising pH and that adds borates.

Lots of people like about 50ppm of borates because it inhibits algae, some, and makes the water feel better, but, unless you CONSTANTLY are fighting algae problems, it's not necessary to have a borates pool. I don't, but I have no good reason, at this time, to go to borates.

Carl