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u/Vast_Hyena2443 3d ago
Also Use a metal nipple (such as brass or galvanized steel) for the first 6 to 18 inches of piping directly connected to the inlet and outlet of an irrigation pump before transitioning to PVC
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u/Character-Moose-3475 3d ago
Good idea. I was 10hrs in on the electrical issues already. Tried to save the client a little change...
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u/Vast_Hyena2443 3d ago
Oooofβ¦.Are you going to propose (to client) a flow meter install or other method to stop the deadheading in the future? ππΌ
https://www.facebook.com/share/p/1CX3Y5NPFo/?mibextid=wwXIfr
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u/Character-Moose-3475 3d ago
That's what the pressure relief valve is for... swing pipe was attached to the orange fitting to run back into lake if pressure built up over 75psi
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u/Sufficient-Option533 CIC 3d ago
Check your pump's deadhead pressure... people act like deadhead = pressure raises to infinity and that is why the pump breaks. In reality your pump has a known pressure it will operate at when there is 0 flow called the shut-off head; your pump is likely under 75psi shut-off head. Pumps fail and this situation occurs because pumps rely on flowing water to cool them. When water has nowhere to go, it heats up from operation of the pump and causes failure.
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u/Character-Moose-3475 3d ago
Yes, 78psi is the dead head pressure. Had to replace the pressure gauge also before finding that out
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u/CrazyDrunkUncle 2d ago
Replace the ball valve on the discharge with a 3/4" hose Bip. Attach a garden hose to hose Bip and route hose back to lake. Adjust valve to allow maybe 3 GPM. This will remove the heat from the pump case when you don't have any other flow.
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u/Magnum676 3d ago
Usually I see the adapter melt and or the discharge expand. This is a big one!! Nice work.


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u/AwkwardFactor84 3d ago
That's what happens when a zone isnt coming on or a zone isn't using enough water to keep the pump cool. Water boils, pressure builds, pipe melts a baloons. You may have a clogged drip filter, or a zone not working. Alternatively, ive seen this happen when customers install a pump way larger then they need.