I too use dichlor and I try to keep my levels at the proper readings. I don't want things to go sideways and have to either add lots of chems to get it back in check or have to drain and refill. With the water being so warm its just a breading ground for bacteria so I would say try to keep it as close as it should be at all times (thats just me). I do wonder though, you add 1 tbs per person after each use. I would think your chlorine levels would be very high. I add 1 tps after each use if there is a bunch of people in, but if its just me I may only add it after every second use. Again depending on my readings. I have had 0 problems doing it this way. I usually test every second or third day but visually check and feel the water and sides every day.