bradfordwhite
Well-known member
The worst is when oil or gunk has built up on the inside walls of pipes BETWEEN a sink and the trap.
This will smell and attract bugs. I had one rental where roaches were living in the drains because even though the drain line worked, the roof of the pipe had gunk they were eating.
So poured a cup of bleach in and covered the drains with a plastic cover and taped it in place, then let it sit over night. They couldn't get out and died. Then took the pipes apart, took them outside and with a stick removed the heavy gunk, put the pipes in the dishwasher (vertically) and cleaned them up and put them all back in place. No cost fix to a stinky, buggy problem.

This will smell and attract bugs. I had one rental where roaches were living in the drains because even though the drain line worked, the roof of the pipe had gunk they were eating.
So poured a cup of bleach in and covered the drains with a plastic cover and taped it in place, then let it sit over night. They couldn't get out and died. Then took the pipes apart, took them outside and with a stick removed the heavy gunk, put the pipes in the dishwasher (vertically) and cleaned them up and put them all back in place. No cost fix to a stinky, buggy problem.
