I'm in the beginning stages of a pool build and the process has led me to finding this web site. Having read obsessively to learn about the pool I've learned that I have been taking very poor care of the stand alone hot tub that came with the house we moved into in August. I've ordered some AHH-Some and a TF-100 test kit, downloaded the pool math app and I am ready to get this thing sorted out. But, I don't have any idea how many gallons my Hot tub holds. Can somebody please point me in the right direction to figure out how many gallons this hot tub holds? Thanks so much in advance.