Flood Control from City Sewer Drain Backup

Installation of Over Head Sewer Drain System to Prevent City Sewer Drain Back Ups

Over head sewer drain system conversions prevent flooding. This is a great system if you experience city sewer drain back ups during heavy rain. An over head sewer drain system is exactly that; your sewer drain system is over the city sewer drains' head pressure. If you have an over head sewer system your gravity draining fixtures would be higher than the city sewer drain. An over head sewer drain system's lowest sewer drain (in house) would be higher than street level or an up steam sewer drain manhole, causing overflow at that point before overflow would happen at your lowest sewer drain fixture. This mean's you're above the sewer drain main's head pressure. An over head sewer drain that has fixtures below the upstream man hole needs to be connected to a pump with a heavy duty check valve attached. An over head sewer drain system is the best defense against city sewer drain back up.

Flood Control

Another method common to the Chicago area, is a flood control sewer drain system. A flood control sewer drain system has a one-way flapper valve installed to allow water to flow out but not back in. The system needs to have an overflow point that pumps down stream of the sewer drain flapper valve. Without this overflow point, you would not have a sewer drain that drains on account of the flapper being held shut by water back up. A flood control sewer drain system with a flapper valve is a great solution if it's not cost effective to install an over head ssewer drain system. Maintenance of the flapper valve should be done yearly to guaranty the valve will swings closed. With a sewer drain system that needs annual service, the sewer drain system has to be accessible. This sewer drain system is usually installed in a 48" wide man hole in the front yard, with a 24" steel cover for access. This sewer drain system allows the city sewer drain to back up and close the flapper valve. When you rely on a pump to pump the water you use, down stream of the flapper valve. If you loose power you can flood your home by using your own sewer drain fixtures unless you have a back up power source for your pump.