Annually
thousands of homes are affected by the weather resulting in our homes being
flooded.

Homes are
flooded with raw sewage and storm water causing millions of dollars in damages.

Millions of
dollars which could have been saved and damage avoided by properly installing a backwater valve.
There are two types of backwater valves; the normally open and the normally
closed. A backwater valve is a one way flow control valve which is installed in
a drainage system. Under normal conditions it allows the waste water to drain
out of the system. However if it the flow should reverse the valve is then
forced closed and this will protect the interior or your home or building from
the sewage backup.

Backwater
valves are required on subsoil drainage pipe that connects into the sanitary
drain to protect it from sewage backups. The backwater valve is also vital when
it pertains to protecting fixtures and drainage openings that are installed
below the grade. The most common backwater entry points are basement floor
drains, water closets, sinks, laundry standpipes and sump pits or any other low
location where there is a possibility that the sewage or storm water systems
becomes over loaded and forces contaminated waste water back through the drains
in your home. Both types of backwater
valves are required to be accessible so that they can be inspected and drains
can be served and cleaned. On our Plumber Toronto web-site you can find out more regarding Back Water Valve

The normally
closed backwater valves are most commonly installed and operate with a simple
swinging disk or plate that opens only in the direction of flow. These types of
backwater valves are installed on a branch that serves a number of fixtures found
for example in a basement bathroom; sink, toilet, and tub. They can also be
installed for a single fixture like a floor drain. A normally closed backwater
valve is not permitted to be installed on a building drain because it would
prevent the free air circulation within the drainage and venting system.

Normally open backwater valves have a floating gate that will rise under a backflow condition with the
water level. They are designed to be
installed on the main drain of the building to protect the entire drainage
system. These valves require an annual inspection to ensure they will operate
properly and nothing is blocking the gate

If the floor
drain is the only fixture in a building that may be subjected to backflow, then
a backwater valve called a flood checks has been designed for protection and
can be effortlessly installed. They are installed directly in the vertical pipe
of a floor drain by means of a compressed rubber disk. If backflow occurs an
upside down rubber cup will be forced up and seal the floor drain.

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