Okay, this is the “I give up” option, and there’s no shame in it. If combined chlorine is over 3 ppm and you’ve shocked three times with zero change, drain it and start fresh. For small hot tubs, this takes an afternoon. For a pool, it’s a weekend project. But honestly? Sometimes you need to admit defeat and outsource the problem to your garden hose.
Just remember to neutralize the water before dumping—fish and grass don’t deserve to get chlorinated. A little dechlorinator goes a long way in saving the local ecosystem.
How-to-Remove-Chlorine-From-Water | Plumbers in Henderson, Las Vegas