What does an anti siphon Sillcock do?
It prevents cold weather from freezing your pipes because the stem washer & seat valve reside inside your house. As an added benefit the anti-siphon stops water or other liquids from being siphoned back into your water supply.
How do you fix an anti siphon Sillcock?
How to Replace the Anti Siphon Valve on a Woodford Model 17 Hose Bibb
- Step 1: remove the plastic anti siphon valve cap.
- Step 2: un-screw the anti-siphon valve.
- Step 3: insert the new anti-siphon valve parts in the proper position.
- Step 4: Tighten the replacement anti siphon valve.
How do you measure Sillcock stem length?
Measure the stem from the point where the handwheel attaches to the back of the threads as show above. The measurement is the same for the figure 90 (top) and figure 80 (bottom). Take 2.5” off that measurement to get the length of the sillcock.
How do I stop my frost-free faucet from leaking?
If the faucet leaks from around the handle just when the water is turned on, the stem packing may be leaking. In some cases, you can fix this by simply tightening the retaining nut that’s under the handle. Remove the screw in the center of the handle and pull the handle off. Try tightening the nut slightly (Photo 1).
When would you use an anti siphon valve?
An anti-siphon faucet or valve is installed to prevent the backflow of dirty water into the clean water source. People use anti-siphon taps for outdoor plumbing, utility sinks, and mainly where a hose is attached to supply water outside of a home.
Should an anti-siphon valve leak?
Either condition allows pressurized water to spray out of the valve when the faucet or sprinkler is on. A leaking anti-siphon valve can still perform the function it was designed for, which is to allow air into the pipe and break the vacuum, but it wastes water and should be repaired or replaced.
How do I know what model Woodford I have?
- Woodford cc 1593 KIC E Varible flow 105B.
- On the “rim” of the faucet, under the handle, there should be a model number….
- Go to their website, http://www.woodfordmfg.com/woodford/WFDIndex.html for identification they have great illustrations etc.
What is Sillcock length?
Unlike a traditional hose bib where the valve stem is an inch or two in length, the valve stem for a sillcock is 6 to 30 inches long. Thus, the valve is well within the exterior wall and protected from the cold and freezing.