Home Landscaping Troubleshooting Centrifugal Irrigation Pump Points

Troubleshooting Centrifugal Irrigation Pump Points




It’s summer, which means irrigation systems are being put to work. But what if your client calls with a problem? Here’s a few troubleshooting tips from Munro Companies, Inc., producers of water supply merchandise.

Consider The System

First, look to see if there have there been any adjustments to the system setting. New fencing might imply doable harm to pipework. Aeration or animals might additionally imply doable harm to pipework or sprinkler heads. If zones had been added, the pump might now be undersized. Lastly, contemplate the water supply—are the degrees decrease than standard for some motive?

After you’ve thought-about adjustments on the property, take a look at the system for apparent drawback areas. These embody: leaking from the case or seal space; cracked or worn parts; clogged filters or screens; and/or broken gaskets in camlocks and o-rings.

Decide The Main Problem

Listed below are some typical points and their options:

  • “My pump is working, however the sprinklers aren’t appearing regular.”
    It is a decreased efficiency problem and is commonly the results of a change to the system setting. If nothing within the setting has modified, it’s time to verify valves for correct positioning, verify strainers for clogs, and verify for suction leaks (TIP: wrapping plastic wrap round piping, fittings, or valves is a good way to verify for air leaks – if there’s a leak, the plastic will tighten)
  • “The pump is working, however there isn’t any water popping out.”
    When you’ve made positive that the pump is primed, this may be the results of plenty of totally different points, from a valve that’s not open, a clog in a strainer or a suction leak, to a broken or worn seal or case. Begin with an excellent inspection of the suction parts. We estimate that over 80% of all pump points are on the suction aspect.
  • “The water comes out, then goes away. Then it comes out…”
    If that is the difficulty, the shopper is experiencing surges or stream cycles. As with the earlier points, verify the suction aspect of the pump first, beginning on the water supply. Typically we see surging when a foot valve is just not absolutely submersed or is blocked by particles.
  • “The motor simply sits there and hums.”
    On this occasion, the shaft and impeller is probably not spinning freely. Verify that first, by inserting a wrench within the wrench slot, and rotating the motor shaft. If you happen to can’t break the shaft free, it’s possible you’ll must take the pump aside to wash it. Nevertheless, this may also be a voltage problem, which will be examined with a voltmeter.
  • “After I flip the pump on, nothing occurs.”
    First guarantee that the breaker is turned on and the pump is plugged in (it’s occurred to one of the best of us!). This is also a voltage problem, by which case it’s greatest to name an electrician to troubleshoot or take the pump to a restore store.
  • “The pump runs for a short time after which stops after which begins once more.”
    When the motor is biking, the difficulty will be electrical, the pump controller (pump begin relay) or probably a float or handbook on/off swap. If you’re can’t discover the difficulty there, you’ll possible want help from an electrician or restore facility.

Security Precautions
In fact, when repairing methods, keep in mind security. When utilizing any device, seek advice from the producer’s tips for correct use. ALWAYS flip the breaker off to work on a pump. (Some troubleshooting checks require the pump to be energized, so make sure the world is safe previous to the duty. Make sure to flip the breaker off once more if drawback persists.) NEVER look at, make wiring adjustments, or contact the motor earlier than disconnecting {the electrical} provide. Thermal overload protectors mechanically reset and may shut {the electrical} circuit with out warning.

Based in 1965, Munro is a number one producer of pump stations, centrifugal and submersible pumps, pump controls, valves, fittings and equipment. Obtain a full 11-page Troubleshooting information with device lists, footage, charts, flowcharts, and extra here.


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