Anyone in New England should check out Ocean State Job Lot if you have one handy. Still stocked up on Pool Shock (12.5%), $2.99/gallon. Hasn't been raided for CoronaVirus uses yet, although they JUST put into the flyer this week how to make bleach using Pool Shock, so I'm going to go buy another 8-10 cases to make sure i can get through my full SLAM without worrying about it. (Got 4 cases to start). They're limiting what you can buy for bleach (1 per person), but haven't applied that to the pool shock yet. Thank god, because buying 1 gallon of shock is the same as buying no shock; won't be doing anything but pouring $3 into the pool for fun...