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Faulty Sprinkler Valves? fleemo17 11-10-2006
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Posted by on November 10, 2006, 12:47 pm


My sprinkler heads only spray about half the required distance, too
little water pressure for head-to-head coverage, despite careful
caluclations during the design phase. However, when I loosen the
solenoid on these old valves, voila! Works just as it should! Is this
an indication of faulty valves? Would replacing the entire valve
likely solve the problem? Perhaps just the solenoid?

BTW, if I leave the solenoid loose, the valve doesn't shut off, so
that's not an option. :/

-Fleemo


Posted by Malcolm Hoar on November 10, 2006, 1:02 pm


fleemo17@comcast.net wrote:
>My sprinkler heads only spray about half the required distance, too
>little water pressure for head-to-head coverage, despite careful
>caluclations during the design phase. However, when I loosen the
>solenoid on these old valves, voila! Works just as it should! Is this
>an indication of faulty valves? Would replacing the entire valve
>likely solve the problem? Perhaps just the solenoid?
>
>BTW, if I leave the solenoid loose, the valve doesn't shut off, so
>that's not an option. :/

Yup, common problem. Replace the whole thing and then plan
on doing it again in not too many years. All of the major
manufacturers appear to have cost-reduced these things to
the point of making them total crap.


--
|~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~|
| Malcolm Hoar "The more I practice, the luckier I get". |
| malch@malch.com Gary Player. |
| http://www.malch.com/ Shpx gur PQN. |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Posted by Bob F on November 10, 2006, 6:37 pm



> My sprinkler heads only spray about half the required distance, too
> little water pressure for head-to-head coverage, despite careful
> caluclations during the design phase. However, when I loosen the
> solenoid on these old valves, voila! Works just as it should! Is this
> an indication of faulty valves? Would replacing the entire valve
> likely solve the problem? Perhaps just the solenoid?
>
> BTW, if I leave the solenoid loose, the valve doesn't shut off, so
> that's not an option. :/

You could have crud in the valve. If you are going to replace them
anyway, it couldn't hurt to takew one apart and clean out whatever
crud you find.

Bob



Posted by on November 10, 2006, 7:00 pm


Thank you both for your input. Perhaps I'll try taking the valve apart
and seeing if I find a crud deposit. Otherwise, it's new valves for
me.

I agree with the statement that these valves are pretty crappy. I
bought Orbit valves because they came in a three-valve assembly and
that's just what I needed. I don't think I'll purchase any more Orbit
in my lifetime. Hopefully Rainbird is of a higher quality.

Best regards,

-Fleemo


Posted by Bob F on November 10, 2006, 9:20 pm



> Thank you both for your input. Perhaps I'll try taking the valve apart
> and seeing if I find a crud deposit. Otherwise, it's new valves for
> me.
>
> I agree with the statement that these valves are pretty crappy. I
> bought Orbit valves because they came in a three-valve assembly and
> that's just what I needed. I don't think I'll purchase any more Orbit
> in my lifetime. Hopefully Rainbird is of a higher quality.
>

If you just installed this, you could have chips from cutting the
pipe and glue chunks messing up the valve. It might not
be the valves' problem at all.

Bob



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