Welcome to our forum.
This site should have a scratch and sniff section so we can all take a wiff and respond
Whats the scum line from? I've never had one in a year of tub use. My tub gets used by 5 ppl, 3 are teen boys, almost daily. I'm just curious what causes the scum line? I've got a huge bottle of Scum Gon that we've never used.