"David Hare-Scott" wrote in message
...
Steve B wrote:
I just added on about six bubblers to three Orbit gear drive lawn
sprinklers. They have a 3/4" feed at about 50 psi. The three lawn
sprinklers now don't spray nearly as much. I took off the guts, and
the filters were not clogged. I turned down the bubblers so they are
just coming out a little. The other stations function properly.

Do you think I have a clog, or is that too many to put on one line? I can
put a pressure reducer on to that leg. But like I say, I
barely have the bubblers on, and don't think that's enough to drop
the performance of the lawn sprinklers by half.

I'm puzzled.

Help appreciated.

Steve

It's hard to say without being there and having some feel for how the
system behaves under different loads. If you suspect a clog then open
joints progressively (and close them again) starting at the pump until you
find the section with a big drop in flow. I am assuming you have polypipe
not threaded metal. OTOH if the system returns to how it was beforehand
when you turn off the new heads then it is overloaded.

D

How about this .......... I put a pressure reducer on the leg I put to the
new plants. They are bubblers, and can be cranked down. That's why I'm
surprised that there was such a drop in pressure. I did take the guts out
of all four of the sprinklers at once and turn on the water, so if there was
gunk in there, it should have blown out. I am going to try both a pressure
reducer and a ninety and see if that solves it. I may have to hook that leg
to another water source.

It's always sumpthin .............

Steve