Recent content by marcovtwout

Thank you both for confirming this is most likely glue/adhesive, which was my initial thought as well but it's good to have confirmation. Also thank you for the background info on what ingredients makes a line cleaner effective, as the information provided by sellers is often vague. The product...

Hello Ahhsomeguy, I'm having trouble to understand your comment as it seems written as an indirect and generic response to my question. Are you saying my hot tub currently has biofilm buildup, and did you conclude so from any of the pictures? Do you think the pictures of the filter housing show...

I did notice it before, but didn't pay much attention to it until this time I noticed the filters were dirty around the same area. Pictures added of the 3-month old filters before cleaning. For this yearly cleaning I used a line cleaner (SpaBalancer SystemFlush) that is advertised to work...

I just finished a thourough cleaning session of my hot hub, which I am using for just over a year and was passed on to me by the previous owner of this house. I noticed this yellowish border inside the filter housing, mostly on the top of where the filters sit. I tried removing it with an...