How To Shock A Hot Tub With Chlorine Tablets. I use spa frog and this link will show you to the latest price on amazon. Leave the cover off for approximately 20 minutes.
So to summarize preparing to shock a hot tub: When shocking your hot tub, pay attention to a few things. You want to do that on a regular basis anyway, to keep your water clear and pristine.
Shocking a spa or hot tub.
The most common hot tub sanitizers are chlorine or bromine. Chlorine was excellent for the inflatable hot tub, and from memory, the hot tub came with a large tub of chlorine that lasted over six months. This is the shock dose you add to your spa when it has already previously had a commissioning chlorine shock dose. The spa shock treatment breaks down organic contaminants to keep the water clear and clean.