I have never done it, but this tells you exactly how to add them in the first post:
so-you-want-to-add-borates-to-your-pool-why-and-how-t4921.html
Step 1: get your TA in range
See Lowering Total Alkalinity in Pool School for instruction to lower the TA.
so-you-want-to-add-borates-to-your-pool-why-and-how-t4921.html
Step 1: get your TA in range
See Lowering Total Alkalinity in Pool School for instruction to lower the TA.