Leslie's pool stores offer 5% discount to vets. Home depot offers 10% discount and Lowe's offers 10%. Buy your liquid chlorine from the box stores and show them your vet card. Don't have one? Go to your nearest vet hospital and they will get you your card. At least it knocks a little more than the tax numbers off the full price. I've been buying everything I can at Home Depot for my pool, mostly liquid chlorine. Last time I was there I found a 5 lb container of cyanuric acid for just less than $20.00. I use my discount every time I go there. Muriatic acid, home depot with the discount. It all adds up friends. Lock and load!