Backflow Preventer Installation in Houston | Protect the Water Supply

If you are installing a new sprinkler system, a swimming pool, or opening a commercial kitchen, the City of Houston (and your local water district) requires you to install a Backflow Prevention Assembly. This isn’t just red tape; it is a critical safety device that prevents contaminated water (fertilizers, sewage, chemicals) from flowing backward into the public drinking supply.

At Blackmon Plumbing, we handle the entire compliance process. We don’t just bolt on the valve; we pull the permit, install the device according to code, perform the required certification test, and submit the paperwork to the city.

A “Cross-Connection” occurs anywhere your clean water pipes meet a non-potable source.

The Risk: If water pressure drops (due to a fire hydrant opening or a main break), the suction can pull fertilizer water from your lawn sprinklers back into your kitchen tap.

The Solution: We install an RPZ (Reduced Pressure Zone) or PVB (Pressure Vacuum Breaker). These mechanical valves act as a one-way gate, physically stopping the reverse flow.

Residential (Irrigation)

Most homeowners need a 1-inch device for their sprinkler system. We connect seamlessly to your PVC irrigation main.

Commercial (Domestic & Fire)

Restaurants and offices often need massive 4-inch or 6-inch devices for fire lines and soda machines. We have the equipment to handle these heavy industrial installs.