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As long as water coming into your Ottawa home is flowing in one direction, you can enjoy an uncontaminated supply of water; however, if the normal water pressure in the system is disturbed due to any reason backflow can happen. When backflow happens, filthy water is sucked into the fresh water supply from a number of sources such as toilet tanks, lawn sprinkler system, dishwashers or washing machines, swimming pools, or even gutter or garbage cans.
Why Water Pressure Drops
There may be several factors behind the sudden drop in municipal water pressure that can cause backflow, let us have a look at a few of these factors:
- Breakage/leakage in main water supply pipes
- Discharge of high volume of water for a fire hydrant
- Failure of a municipal pumping station
When water pressure is suddenly dropped from the system, water from nearby sources may be drawn into the system creating all sorts of problems for the homeowners.
How to Prevent Backflow
These professional plumbing agencies will install specialized devices in your system that will ensure that fresh water is not cross-connected with wastewater. Such devices will keep the municipal water flowing in one direction only and will prevent the contaminated water to enter into your water supply system.
Following are the two common types of devices that are used by the plumbers to prevent backflows:
- Hose Bib
A hose bib is used in a single outlet such as an outdoor water faucet to prevent backflow. The presence of a spring in a hose bib is what keeps the water pressure in only direction only. A sudden drop in the municipal water pressure causes the spring present inside the hose bib to close and the valve to open, this ensures that back flowing water is discharged before it even enters into the fresh water supply.
- Pressure Type Vacuum Breaker
This device is usually installed in the pipe that supplies water to the sprinkler system. This device constantly senses the pressure in your water supply system. As soon as the pressure in your water system suddenly drops below air pressure entering through an above-ground inlet, a built-in valve is automatically activated preventing the backflow.
If you notice that problems persist and you might need an entirely new sewer replacement, we highly recommend that you look towards trenchless sewer repair. This trenchless sewer replacement should be completed by professionals. If you need help with the plumbing system, we highly recommend that you call Dr. Pipe Drain and Plumbing Services.