I joined this forum to learn about borates. I have always had a problem with pH rise. Pool has been in since 2006. So I took the first step last night. dumped 11 boxes of 20 Mule Team and 3.5 gallons muriatic acid in. That doesn't even get me half way for my size pool. will add more by the weekend and let y'all know how it goes. Have to wait for Target to restock as I wiped out their supply yesterday