I recently bought a used Pacific hot tub. It works great, but it seems I do a lot of gathering the jets. They pop out and go to the bottom of the tub. The previous owner used bromine, and I am using chlorine. The stray jets have a residue on them coming off, so I clean them try to put them back in and they still pop out. I can't seem to get them correctly turned/ screwed in. Does anyone know what I can do besides my all time fix everything with SUPER GLUE?? Thanks,

It is very likely the jets are made of plastic and the bromine has begun to deteriorate the outer surface. You may need to buy new or ask a dealer if he has any old spas for parts.