How much borax?

[poolrx]

Rangeball, figured it was a good thing. Lowering alkalinity is probably the biggest pain in the butt next to dealing with algae
The Mule Team borax at Walmart should be a 4 lb box. 1/2 box would be a good start. Guessing that should bring you closer to the 7.3 range.

[Rangeball]

Thanks Joe