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Drip zone problem

Dirt Boy

LawnSite Senior Member
Installed a zone for drip, it worked fine for the first year (that I know!!)
Now, it (valve) won't shut off.

Starts out from manifold - 1" Baccara valve (rated down to .5 gpm)
runs to drip area, into 25 psi pressure regulator, and into drip line.
There is only about 18 1gph emitters. (.3 gpm)

I can make the zone shut off by closing the valve regulator off, or opening the end of the drip line.

So, I would like your input if my thinking is right.

I am assuming that valve won't close because there is not enough "usage" and hence pressure differential across valve. So, since I didn't need any more emitters for plants, I installed a VAN head just outside the area, figuring that that will increase the gpm enough for valve to work. NOT
Gutted the valve, flushed it, still don't work.

I am guessing I need to install a valve that can tolerate a lower flow. Would you agree this with this logic?

Thanks a bunch!
If the valve has a flow control, try turning the flow control down until the valve will fire and shut down from the controller. I had a similar problem with a irritrol valve and this solved my problem...if that does not work the Rain Bird DV-100 is a great low flow valve.


LawnSite Member
So. Cal
had a similiar problem on manual operation using the bleed screw, crank down the flow control and it fixed itself. Timer operation, never had a problem with shut off,but would try the same thing before trying something else.

Dirt Boy

LawnSite Senior Member
Thanks guys!
I don't know about you, but I've learned an awful lot here, just browsing, & reading all the posts.