Plumbing and water heaters
Sewage Backup Flood Prevention and Water Leak Notification on Your Mobile Device
...check valve?
A check valve will protect buildings from sewage backflow, but debris can accumulate in those systems that prevent a perfectly tight seal in case of backflow. Check valves have a removable top that can be removed to clear debris, but have you ever done that yourself, or heard of someone who has?
It is best...
