Mansfield anti siphon hose bib; 500 series

[miesk5]

Our 4 yr. old Mansfield 500 series hose bib is leaking under the grey cap (above the faucet outlet) only when the valve is turned on.

From a www search I found this in the old Terry Love MB (I was AlM there) "...Mansfield Sillcock Service kit number 630-7755. This kit contains replacement parts for 300 and 500 series Mansfield sillcocks and has fixed the severe leakage problem...".

Does the grey cap unscrew for using the replacement parts in the kit?

Any advice on replacing the parts?

I can do reg. bibs, sink faucets etc.

TIA gang!

Bless All Who Serve

[Clayton]

The kit you mentioned includes the parts to repair a faucet that drips from the spout when off and or around the handle when in use.

To repair the vacuum breaker you need 630-7500

http://img.photobucket.com/albums/v2.../man500vac.jpg

[miesk5]

Thanks much Clayton!!!!

Will check Monday for that kit from the plumbing supply place where we purchased the hose bib.

Great Instructions too!

Be well,
Al

The kit you mentioned includes the parts to repair a faucet that drips from the spout when off and or around the handle when in use.

To repair the vacuum breaker you need 630-7500

http://img.photobucket.com/albums/v2.../man500vac.jpg

[PEW]

Just a little additional info.

Mansfield puts out two kits, one #630-7500 to repair the anti-syphon valve, for around $3.00 and the other #630-7755 to rebuild the rest of seals and washer for around $7.00. They should be available at most plumbing supply houses, etc.

Many times a quick repair for a leak around the anti-syphon cap, is to pry off the plastic cap with a screw driver, being careful not to break it. Work a little from two sides until it pops off. You can then unscrew, counter clockwise, the bonnet (valve retainer) with a pair of plyers. Clean any crud from under the bonnet, which acts like a washer seat. You will find a plunger assembly, clean and reverse the washer in the assembly. Re-assemble the parts you just removed. Tighten the bonnet firmly. Snap the cap back on. With a little of luck you will get many years of additional service before needing a repair kit.

Paul

[npardo]

I have a Mansfield anti-siphon faucet that will not turn off anf leaks from the center of the handle where the screw is. I took apart and cleaned the anti-siphon poppet and the handle and gaskets. Everything looking like it was in good condition. I still cannot shut it off. Any suggestions?

[jadnashua]

The on/off guts are way back in the wall...depending on the model, possibly as much as 12" deep in the wall. Does it leak only when you are running a hose, or after you've shut it off? If it leaks while you are running the water, it is probably shot - you probably left a hose on it over the winter, or even one night when it froze (it can't drain if there's a hose on it). If it leaks all of the time, then the seat or washer needs repair - typically replacement.

[WiScott]

So my Mansfield 500 hose bib has a constant drip, both when "on" or "off". I get a very slow drip out of the faucet opening itself, and intermittent drips from behind the handle. I installed a new Vacuum Breaker kit which made no difference. I then purchased the seal and washer rebuild kit (#630-7755) and proceeded to shear of the head of the hex head bolt which holds the handle on.

The handle still does not want to come off...any thoughts on how I should proceed?

Thanks.

[kingsotall]

Guess if you can't get a grip on it with vise grips or screw exctractors won't work then it's time to replace the whole hose bib.

[MarieB81]

Not sure if anyone is still keeping an eye on this thread...but I am having the same problem as the original poster. I bought the vacuum breaker repair kit when I discovered that the original washer was almost completely corroded. But I am still getting the exact same leak even with the new breaker assembly. The plunger is not floating all the way up to seal against the bonnet when I turn the water on. Any ideas would be greatly appreciated.