Closing a 4-person inflatable hot tub for winter takes more than just pulling the drain plug. You need the right sanitizer dose first, and the math is simpler than you think. This guide gives you exact bromine and chlorine amounts, a step-by-step closing sequence, and the mistakes that trip up most first-timers.
Closing a 4-person hard-shell hot tub for winter takes more than draining the water. You need the right sanitizer dose at the right time to prevent biofilm, scale, and a nasty surprise when you refill in spring. This guide gives you exact bromine and chlorine amounts based on typical 4-person capacity.
Closing an inflatable hot tub for winter means giving the water one final, heavy sanitizer dose before you drain. This guide covers exact bromine and chlorine amounts by tub size, which sanitizer is the better choice for a winterizing close, and the right order to do everything so nothing gets left behind in the shell or hoses.