Yard sprinkler problem
 

Have 1 sprinkler head that does not work.

I have removed the sprinkler unit form the housing, which in theory,
should allow water to gush from the line.

No water escapes when the rest of the yard is being watered.

It "appears" that this particular head is the next to last on the
line. What appears to be the last head on the line is getting water.

Dont know where the lines are, as system was installed several
occupants back.

Can anyone suggest a way to locate underground plastic pipe.

And, a way to clear the head I already know is plugged?

Have 60 gal/5hp compressor and enough hose to reach anywhere in the
yard.

thanks

gary

Yard sprinkler problem
 

On Monday, May 29, 2017 at 3:05:12 PM UTC-4, Gary wrote:
Have 1 sprinkler head that does not work.

Can anyone suggest a way to locate underground plastic pipe.


thanks

gary

I would try connecting a water hose to the non working sprinkler and try to back flush. You might remove the sprinkler head from the " last " outlet.

I am assuming that the one sprinker head has worked since you bought the house.

If it has never worked since you bought the house there are all kinds of possibilities. Like the water was not drained and the pipe froze and broke. And then the owner did some micky mouse repair and jost used a hose to water that part of the lawn.

You could run a wire inside the plastic pipe and connect a signal generator to it and trace with a portable radio.

Yard sprinkler problem
 

On Mon, 29 May 2017 13:05:06 -0600, Gary wrote:

Have 1 sprinkler head that does not work.

I have removed the sprinkler unit form the housing, which in theory,
should allow water to gush from the line.

No, it should release water in a measured stream at measured angles.


No water escapes when the rest of the yard is being watered.

It "appears" that this particular head is the next to last on the
line. What appears to be the last head on the line is getting water.

Have you left the water turned on and prodded with a long drill bit
(without drill motor) after removing the head? If something is
blocking the junction, it still may allow water by to feed the end
head. I've seen meeces in systems left open overnight.


Dont know where the lines are, as system was installed several
occupants back.

Most are perimeter. Use a flat shovel to get the grass off the top and
a trowel to get down to the pipe to find the direction.


Can anyone suggest a way to locate underground plastic pipe.

Borrow your neighbor's ground penetrating radar unit. If it's in use,
grab your shovel (as stated above.)


And, a way to clear the head I already know is plugged?

Did you swap the two heads to make sure the one is, indeed, plugged.
When I pull a plugged head and no water comes out, I tend to think the
problem is elsewhere. After I get water out the pipe, then I check
the head.


Have 60 gal/5hp compressor and enough hose to reach anywhere in the
yard.

The pop-up heads with water-fed rotation can be hard to clean, but
sometimes it's just a matter of feeding water backwards through it.
Water works better than air, but air can work, too. Before
pressurizing it, extend it so it doesn't explode when pressurized. Try
40psi.

I've seen more people allow clods of dirt into open irrigation pipes
when they were servicing them than any other mistake. Silt is usually
self-clearing, but moss and sand can be troublesome.

--
I started out with nothing and
I still have most of it left!
--anon

Yard sprinkler problem
 

I would try connecting a water hose to the non working sprinkler and try to back flush. You might remove the sprinkler head from the " last " outlet.

I am assuming that the one sprinker head has worked since you bought the house.

If it has never worked since you bought the house there are all kinds of possibilities. Like the water was not drained and the pipe froze and broke. And then the owner did some micky mouse repair and jost used a hose to water that part of the lawn.

You could run a wire inside the plastic pipe and connect a signal generator to it and trace with a portable radio.


Where would I buy one of these?

thanks

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Yard sprinkler problem
 

Borrow your neighbor's ground penetrating radar unit. If it's in use,
grab your shovel (as stated above.)


This sounds pretty interesting, Would you happen to recall the Harbor
Freight SKU #for this item?

thanks

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Yard sprinkler problem
 

On Fri, 02 Jun 2017 06:52:51 -0600, Gary wrote:



Borrow your neighbor's ground penetrating radar unit. If it's in use,
grab your shovel (as stated above.)


This sounds pretty interesting, Would you happen to recall the Harbor
Freight SKU #for this item?

Sure! Here ya go: http://tinyurl.com/yaxlv2t2
and http://tinyurl.com/yakc8kts
A better unit: http://tinyurl.com/y9pasxup
(all googled so ask no deeper questions, please)

--
I started out with nothing and
I still have most of it left!
--anon

Yard sprinkler problem
 

On 6/2/2017 8:51 AM, Gary wrote:
...
You could run a wire inside the plastic pipe and connect a signal generator to it and trace with a portable radio.


Where would I buy one of these?


Google "wire tracer"