I got a new hot tub up and running about 3 weeks ago. I was having some issues with rising chlorine demand which I thought was settling down but started to rise again. On the advice of one of the members (JoyfulNoise) I purchased a container of Ahh-some to do a purge. I have a 250 gallon tub so I put in 2 1/2 teaspoons, set the air and jets on high and let it go to work.
It started foaming pretty quickly and after not much time I started seeing some greenish/brown gunk on the foam. I had read some of the other posts on TFP about using Ahh-some so I was wiping the scum off the sides as the process moved along.
The directions say to run the spa for 15-30 minutes and then drain. I have read that others vary on this time and method so I ran it for an hour. More gunk kept coming out so I just kept wiping it off the sides. The foam and gunk gradually diminished and after an hour there wasn't really any foam or gunk left so that is when I drained the tub. I did turn the jets on for a few seconds with an empty tub to clear the lines out as much as possible per the instructions.
I didn't get near the foaming and gunk that I have seen others get when they have used Ahh-some but was surprised by what I did get since it is a new tub. I am glad I did the purge and will definitely use Ahh-some at each water change. Hopefully this will help with my initial issue of high chloring demand.
It started foaming pretty quickly and after not much time I started seeing some greenish/brown gunk on the foam. I had read some of the other posts on TFP about using Ahh-some so I was wiping the scum off the sides as the process moved along.
The directions say to run the spa for 15-30 minutes and then drain. I have read that others vary on this time and method so I ran it for an hour. More gunk kept coming out so I just kept wiping it off the sides. The foam and gunk gradually diminished and after an hour there wasn't really any foam or gunk left so that is when I drained the tub. I did turn the jets on for a few seconds with an empty tub to clear the lines out as much as possible per the instructions.
I didn't get near the foaming and gunk that I have seen others get when they have used Ahh-some but was surprised by what I did get since it is a new tub. I am glad I did the purge and will definitely use Ahh-some at each water change. Hopefully this will help with my initial issue of high chloring demand.