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Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

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Replace existing sprinkler system? dan 05-03-2008
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Posted by dan on May 3, 2008, 8:04 pm
Norminn wrote:

> clipped
>
> >
> > I plan to have a design done just to see if the original was
> > ill-planned. Something else I didn't mention. We had a sprinkler
> > company come in to "fix" low pressure on one of the lines. They said
> > there was a leak somewhere. Instead of fixing, they just put in a
> > new line with sprinkler heads - idiots! Now I have one dead set of
> > lines and another that still doesn't work properly.
> >
> >
> What I asked was whether the pressure was any different when you
> bought the house? Are you on municipal water supply? If so, you
> should be able to find out what the pressure is at the meter.

It's on a well (at the top of my original post). I have no idea if the
pressure changed since I bought the home - it has always been low in at
least one zone. Some others seem fine.

--


Posted by on May 4, 2008, 10:35 am
On May 3, 8:04=A0pm, "dan" <> wrote:
> Norminn wrote:
> > clipped
>
> > > I plan to have a design done just to see if the original was
> > > ill-planned. Something else I didn't mention. We had a sprinkler
> > > company come in to "fix" low pressure on one of the lines. They said
> > > there was a leak somewhere. Instead of fixing, they just put in a
> > > new line with sprinkler heads - idiots! Now I have one dead set of
> > > lines and another that still doesn't work properly.
>
> > What I asked was whether the pressure was any different when you
> > bought the house? =A0Are you on municipal water supply? =A0If so, you
> > should be able to find out what the pressure is at the meter.
>
> It's on a well (at the top of my original post). I have no idea if the
> pressure changed since I bought the home - it has always been low in at
> least one zone. Some others seem fine.
>
> --


Certainly figuring out what the pressure and flow rate are at the
beginning of the system is the key. It could be that is the problem
or it could be a problem in the irrigation system itself, or a combo
of the two.

Posted by dan on May 4, 2008, 11:27 am
trader4@optonline.net wrote:

> Certainly figuring out what the pressure and flow rate are at the
> beginning of the system is the key. It could be that is the problem
> or it could be a problem in the irrigation system itself, or a combo
> of the two.

I installed a pressure gage just after the pump and just before the
valves to the zones. The pressure ranged from 20-28 psi. That seems low
to me. Also, the pressure gage "bounced" like it was being vibrated.
The pressure was not steady. I'm not sure if this is normal on a
sprinkler system.



--


Posted by ransley on May 4, 2008, 12:47 pm
On May 4, 10:27=A0am, "dan" <> wrote:
> trad...@optonline.net wrote:
> > Certainly figuring out what the pressure and flow rate are at the
> > beginning of the system is the key. =A0 It could be that is the problem
> > or it could be a problem in the irrigation system itself, or a combo
> > of the two.
>
> I installed a pressure gage just after the pump and just before the
> valves to the zones. The pressure ranged from 20-28 psi. That seems low
> to me. Also, the pressure gage "bounced" like it was being vibrated.
> The pressure was not steady. I'm not sure if this is normal on a
> sprinkler system.
>
> --

28 is too low, 50-80 is more normal, probably its the pump. With
correct volume and pressure adding a run and heads might do it.

Posted by dan on May 6, 2008, 4:22 pm
ransley wrote:

> On May 4, 10:27 am, "dan" <> wrote:
> > trad...@optonline.net wrote:
> > > Certainly figuring out what the pressure and flow rate are at the
> > > beginning of the system is the key.   It could be that is the
> > > problem or it could be a problem in the irrigation system itself,
> > > or a combo of the two.
> >
> > I installed a pressure gage just after the pump and just before the
> > valves to the zones. The pressure ranged from 20-28 psi. That seems
> > low to me. Also, the pressure gage "bounced" like it was being
> > vibrated. The pressure was not steady. I'm not sure if this is
> > normal on a sprinkler system.
> >
> > --
>
> 28 is too low, 50-80 is more normal, probably its the pump. With
> correct volume and pressure adding a run and heads might do it.

It seems obvious that the pump is bad (low pressure) but are there any
ways to really tell? I'd hate to replace the pump to find the well
couldn't keep up and that's the real issue or something like that.

--


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