hard-shell hot tub

Shock Dose for Closing a 6-Person Hard-Shell Hot Tub for Winter

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Closing a 6-person hard-shell hot tub for winter takes more than just draining the water. You need the right shock dose at the right time to kill what’s living in your plumbing before it sits dormant for months. This guide gives you exact amounts for both chlorine and non-chlorine shock, plus the steps to do it right.

Bromine and Chlorine Doses for Winterizing a 4-Person Hard-Shell Hot Tub

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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.