Sewer back up prevention – sewer backup system – flood control


Grate. Sewer backup can also flood a basement or a crawl space because the design did not implement a Sewer Backup Prevention System. Older homes are designed with gravity systems that do not require a pump to move sewage into the city sanitary system.
All Plumbing fixtures in the home end up traveling through the system always heading downhill utilizing gravity eventually emptying into the city sanitary
Flood Control in Chicago, IL
system. 99% of these older homes are not equipped with a Sewer Backup Prevention system. The illustration to the left shows the typically sanitary design in older homes that are susceptible to Sewer Backup when heavy rains overwhelm the city’s storm sewer. The picture of the manhole cover being lifted by water shows an overwhelmed system. All the sewer lines are well below grade and when too much sewage overwhelms the system, waste water comes up from floor drains, shower drains, toilets, slop sinks etc. The system shown in the illustration is the “MOST LIKELY TO FLOOD” due to Sewer Backup. We are, Safe Seal, Licensed Plumbing Contractor. We do not sub out any of our work and have resolved these problems for thousands of Home owners. Call us today and let us show you how we can map out a logical design for you specific needs.
Sewer Backup Prevention can be accomplished in a variety of ways.
The best way first. The Modified Overhead Sewer or Overhead Sewer is engineered to be the least likely to flood due to Sewer Backup. All newly constructed homes come with a built in design that makes it virtually impossible for basement flooding or crawl space to have Sewer Backup because all plumbing fixtures do not send the sewage or waste to sub basement floor
Flood Control and Sewer Backup Prevention in Chicago, IL
sewer lines. All plumbing fixture, shower drains, floor drains, toilets, slop sinks, washer machines are connected to and ejector pit which pumps the waste overhead directly into the soil pipe or 4” stack that goes directly into the city sewer system. The illustration to the left give you usual example on how it works and shows how it is so effective in preventing Sewer Backup and Basement Flooding. Sub Floor sewer lines are not connected directly to the city sewer. When the sub basement floor sewer lines are not there, sewer backup and Basement Flooding is eliminated because the possible ways sewage can enter do not exist. The ejector pit has a check valve which prevents sewage from flowing back into the pit. Some cities, like Chicago have a system this combination Storm and Sanitary. Other Cities have two systems. One is for Sanitary the other is for storm water. Although is much worse to have a Combination Storm and Sanitary Sewer System because Sewer Backup can allow some of that nastiest contaminants known to man into the living space of your home. This must be addressed at all costs. There are other reason why the Modified Overhead Sewer is the choice option of many of our customers.
Mechanical flappers are not used in the Modified Overhead Sewer Backup Prevention System. Any object that can block the flapper (back flow valve) from operating and causes the Flapper to not close; tree roots, forks, knives, toys, sun glasses, diapers, ad infinitum. Yes, these are items that we have found in some of the most expensive (the vault in the front yard) Sewer Back Flow Systems that fail because of the inherent flaws in the design that will cause another Sewer Backup.
You must be asking, how can my older, sub floor sanitary system be converted into a modified overhead sewer which will virtually eliminate Sewer Backup and thus Basement Flooding and Crawl Space Flooding.

Sewer back flow valves – clean check backwater valves

On the interior of the basement, The Clean Check Back Flow Valve can be used in conjunction with an overflow ejector pit that will allow the family to still use all plumbing – fixtures, toilets, shower, washing machine, etc. It works when an overflow outlet is installed after (toward the inside of the house) the Sewer Back Flow Valve. When The Backwater Valve is closed and preventing your basement from getting soaked, the water being used in the house flows to the ejector pit and then gets discharged on the city side of the Back Flow Valve. This configuration is more expensive but better than a standalone Sewer Back Flow Valve.