How to Tell if My Home Has Dirty Sock Syndrome and What I Can Do About It

man in hard hat tunes hvac for repair
pink gloved hand pours red chemical cleaner down drain
a round brown sewer in ground surrounded by green plants
open sewer cap in gravel ground
a fan on a brick building
Repairman in overalls, hat, and gloves repairs water heater
a man wearing gloves and a blue hat holding a black shower head
Old plumbing tools