Quote Originally Posted by steve52 View Post
I want to start using borate as an algicide and water conditioner. How much borax and acid do I need to use in my 13000 gallon AG?
Borax is NOT an effective algicide; it inhibits algae, but does NOT prevent it. You MUST maintain adequate chlorine levels or you WILL have problems. Also borax is NOT a "conditioner", at least in the sense often used in the pool industry, of a 'chlorine stabilizer'. Borax does help stabilize pH somewhat, and it has some mild optical effects on the water's 'sparkle', and it does seem to make it harder for algae to get a start. However, these are all benefits 'on the edges'.

Maintaining adequate chlorine and pH between 7.0 and 8.0 is STILL the CENTRAL issue.