Closing a 2-person inflatable hot tub for winter takes a specific sanitizer dose, not a guess. This guide gives you the exact bromine and chlorine amounts, a step-by-step process, and the mistakes that leave you with a foul-smelling tub in spring.
A 2-person inflatable hot tub typically holds between 150 and 300 gallons depending on the model, and that range matters more than most owners realize. Voltage doesn’t change the gallon count, but it does affect how quickly water heats and how often you’ll be dosing chemicals. This article walks through the real numbers and shows you exactly how to calculate your chemical doses from scratch.