Commercial Backflow Preventer

Commercial Backflow Preventer

Does it ever come to your mind about testing the water system for the backflow? If yes, what was the last time you have done that? The commercial, large residential and industrial buildings in New Jersey need to do backflow testing at least once in a year. To make sure the safety of the building’s drinking water some of them must do seasonal testing as per the requirement.

Problems of water backflow –

Generally, in normal conditions, the water flow starts from the municipal water system to the buildings from the taps, faucets, showers, fixtures and other water-using appliances. Now backflow of the water comes into the picture when water starts flowing backward from the taps, faucets, showers, fixtures and other water-using appliances to the main water distributing system. This scenario occurs when the water pressure of the building is higher than the water pressure of the city’s main water distributing system. Now, as the water starts back flowing it starts picking up the harmful contaminated ingredients which are most likely to spread to the city’s main water distributing system. Now you will understand how harmful it could be?

This could also happen in the situations when the plumbing system of the building contains either link to non-potable water lines or they have backflow preventers which are faulty. You must have heard the term “cross connection” which occurs because of this situation. This cross-connection is very dangerous as sometimes the wastewater may enter into the potable water system. This could lead to the increase in the health problems.

The Role Of The Commercial Backflow Preventer –

This preventer helps in preventing backflow of the water from the building to the city’s main water distributing system. The buildings having additional water features like pools, fire suppression systems, hot tubs, irrigation and like that must have RPZ valves which are backflow preventers. They also required in the building which has large boilers. The reason behind this is, all these systems may contain harmful chemicals or some other contaminants which could make the drinking water unsafe to drink, probably for the entire city.

Let us check how to do the RPZ valves / DCVA work –

RPZ means Reduced Pressure Zone. DCVA means Double Check Valve Assembly. Now, these valves help in detecting whenever the water pressure gets dropped, in technical terms when water pressure of the building is higher. This valve gets open automatically. This valve lowers the water pressure in the building and helps in not occurring the situation of backflow of water. These valves are required by Department of Environmental Protection, New Jersey for the protection of the drinking water.

RPZ or DCVA services with A General plumbing and sewer services –

Our licensed plumbers provide all seasonal testing and RPZ related services. We have designed these services for you in such a way that we make sure for you these valves are functioning properly. We have the replacing service of valves if they are not functioning properly in order to take care of the safety of your drinking water.

To schedule the backflow testing in New Jersey, call us at 732-919-7000. We would be more than happy to talk to you and assist you with anything regarding plumbing and sewer maintenance and up-gradation.


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