Review on Efficient Spa Jet Cleaner for Hot Tub and Jetted Tub Maintenance - AquaDoc GAL by Anthony Lowery

I used this in a 20 year old 'free' hot tub. I applied the recommended dose but left it on a little longer than stated. The water looked like a pack of snakes had shed their skins, with all sorts of debris and scales coming off the pipes. I drained and rinsed everything and voila, a perfectly clean hot tub. From the first use I had NO dirt from the lines and the water was crystal clear. To be honest I was skeptical but now I'm just amazed that so little of this solution can do so much work.