Irrigation pump problem

I've got a question for all the lawn and irrigation experts out there. My sprinkler system is running fine but i have a spiket (sp?) attached to the pump so i can run a hose from it, but whenever it is turned on the pump just short cycles. It cuts on then off consecutively like its not drawing enough pressure. How can i fix this so i wont burn up the pump and still be able to use the hose? The pump draws from a shallow well so when i use it it doesn't effect my water bill. Any help is appreciated.

 

Sounds like a pressure switch problem.

 

It could be a couple of things:
1 The water tank is water logged. (too much water in it and not enough air) Shut your pump off.
If there is a valve to shut the water off to the house do so.
Drain all water from the tank
Check the air pressure of the tank (should be a air valve on top)
If your pressure switch is a 30/50 (at 30psi the pump comes on at 50 it goes off)
The tank should have 28 PSI of air in it with all of the water out of it.
If it is low, fill with air until you are 2 pounds below your cut on pressure. 30 psi in the example
If this should reoccur, most likely your tank bladder has a leak. You will have to replace the tank.

It also could be vaccume leak if your pump is a jet pump. (one that is above ground and in your basement or shed) Check the clamps and tighten if needed.

Also, you could remove the pressure switch and make sure it is not clogged up with sediment.

 

How do i adjust the pressure switch? My sprinklers work fine so i'm pretty sure the tank does't have a leak, i just don't think its drawing enough pressure from the pump.