febco lf8604"

LF860FS

After everything’s primed, Trethewey uses PVC cement to join the pipe assemblies together, following the manufacturer’s instructions.

This 2 inch lead free reduced pressure zone backflow preventer assembly prevents the reverse flow of high hazard (toxic) fluids found in the water from entering into the potable water supply due to backsiphonage and or backpressure. It is used in water services to industrial plants, hospitals, morgues, mortuaries, and chemical plants. It is also used in irrigation systems, boiler feed, water lines and other installations requiring maximum protection. This reduced pressure zone backflow preventer assembly consists of a lead free bronze body, threaded quarter turn ball valves, top mounted test cocks, spring loaded check valves, and a pressure differential relief valve. This backflow assembly contains a flood sensor with SentryPlus Alert® technology to detect excessive water discharges from the relief valve. When activated through an add-on sensor connection kit, the flood sensor can send an alert to notify personnel about potential flooding. Add-on sensor connection kits are available for BMS and cellular communications.

Febco LF8603

An automatic washing machine shutoff valve gives you an extra layer of protection against flooding and water damage. It detects when you’re actively washing clothes and only allows water to flow when the washer has a cycle running. Modern versions of the device can even detect leaks and shut off the water supply in advance. In the above video, This Old House plumbing and heating expert Richard Trethewey shows how to install one for added peace of mind—and potentially even lower insurance premiums. Learn more in our guide below.

Febco LF860repair Kit

Trethewey can now hold the valve assembly against the wall and mark where to cut the straight piping so the valve fits just outside the outlet box.

FEBCOLF860U

Incorporating these precautions can prevent any accidents or damage during installation. It’s also beneficial to inform anyone in the household about the ongoing work to avoid disturbances.

FEBCO860 manual

The automatic shutoff valve has both a power cord for the wall socket and its own receptacle on the front face. When Trethewey plugs the washer’s power cord into the valve, it ties the valve’s position to the washer’s power draw. A light on the valve lets him know the valve is ready to work.

Finally, Trethewey reopens the water supply and starts a test cycle for the washer. A light on the valve indicates that the washer is on. If the pressure on the hoses releases when he pauses the fill, the installation is complete.

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FebcoLF850

Automatic shutoff valves can be bulky, so they commonly have space for fasteners. Trethewey makes two marks on the wall over the outlet box, predrills the holes, inserts hollow-wall anchors, and attaches mounting screws to secure the valve assembly in place.

The automatic valve Trethewey uses has a leak sensor that goes on the floor behind the washing machine to detect moisture. He plugs it into a designated port and places the sensor in a strategic spot, close enough to detect even minimal water presence.

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Once Trethewey has the measurements and marks he needs, he uses a tubing cutter to trim the pipes to the correct length. Then, he cleans the cut ends and the inside of the elbows with PVC primer.

Many automatic shutoff valves come in a kit that can connect to the existing valve with adapters. Trethewey temporarily installs the brass adapters on the existing shutoff valves and inserts 1/2-inch PVC piping into the ball swivels inside the adapters. Then, he attaches 1/2-inch PVC elbows to the brass connections on the underside of the automatic shutoff valve.

Now, it’s time to put the hoses back on. Trethewey uses pliers to tighten the two brass adapters, then reattaches the hot and cold water supply hoses to the threaded connections on the automatic shutoff valve.

First, Trethewey closes the hot and cold water shutoff valves that supply water to the washer and disconnects the supply hoses from the valves with pliers. It’s best to have a rag ready so you can catch any water that spills from the hoses.

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