Why don't we use these to cover outside cleanouts instead of caps or plugs? This way if the lines back up, the cleanout will open up outside instead of backing up and flooding the house. The homeowner will see the water and call a plumber and no water damage(in theory). Of course the cleanout needs to be able to unscrew to get access to the cleanout. Any disadvantages?
No announcement yet.
Check valve covering a cleanout