Winterizing a 2-Person Hard-Shell Hot Tub: Exact Sanitizer Doses
Closing a 2-person hard-shell hot tub for winter takes more than just draining the water. You need a final sanitizer dose that’s high enough to kill everything in the shell and lines before the tub sits empty for months. This guide gives you the exact bromine and chlorine amounts for a typical 250- to 350-gallon 2-person hard-shell, plus the steps to apply them correctly.