Rain Bird CP100 sounding like a air horn

[spudder1]

Does any one know why my rain bird CP100 1" in line valve sounds like a air horn? Is it because i have no did the valve mod yet?

Thanks for the help

[Shrimphead]

Yep, that is the reason.

[M3NT4L]

I dont want to be an a$$ but why dont you search this or look for an answer on the wiki or something.

[spudder1]

You know all I would like is an answer to my question. I have never talked to anyone, nor i would speak to anyone like this. I just asked a question and wanted a short little answer. We all should talk to people how we would want to be talked to. Life is too short to be mean.

[plumpthumb]

I have modded two Rainmasters; one works just fine (quiet) the other gives
me the "honk". Each one was done in an identical manner but put on two different guns. I have tried several different remedies but to no avail. I am
beginning to believe it is either in the design of the gun (could THAT be?) or an ideosyncrasy of the particular valve. I have come to live with the honk-
ironically it is on a GB sniper! That's my best-any ideas?

[spudder1]

Thanks, I will have to build another gun and see what happens. The first time I let the valve go I was in the garage and though I lost my hearing.

Thanks alot for the information.

[beebs111]

I dont want to be an a$$ but why dont you search this or look for an answer on the wiki or something.

why dont you stop being a dick to the new members of the forum, and actually contribute something

[spudder1]

Thats "BEEBS" Ya just trying to get a little help out here. I have built spud gun about 10 years ago, and now starting to be a kid again.

[boilingleadbath]

Honking is most commonly redemied by increasing the flow of the pilot valve.
That is, mod your valve.

*adds "airhorn" keyword to the relevent spudwiki articals*

[spudder1]

I did the mod saturday night, and still doing the same thing. When I pull the blow-gun lever, the air comes out of the airgun, and not the barrel. Do you have any clues about this one.

Thanks

[beebs111]

is there something jammed in your barrell?

[schmanman]

are the arrows on the valve pointed from the air chamber to the barrel ?

[spudder1]

The valve arrows are from the air chamber to the barrel. First time I tried this there was nothing in the barrel. Last night I put some paper ball wrapped with electrical tape around it and did the same thing. Thanks alot for helping me out guys.

I pressurized the chamber to 50 PSI and squeezed the air gun on the modified valve and all the air comes out of the air valve not the chamber

Thanks

[boilingleadbath]

I don't really know my sprinklers, but I'd venture to say that your pipe nipple is protruding through the valve lid to a degree that it contacts the diaphram and prevents it's momement.

Try taking your pipe nipple and grinding off a couple threads.

[SpudStuff]

Just un screw the nipple and put ~10 wraps of teflon on it and thread it in ~ 1/2 way