Dultmeier Sales will be closed Thursday, November 26th and Friday, November 27th in observance of Thanksgiving

Dultmeier Sales will be closed Thursday, December 24th at 12pm and all day Friday, December 25th.
Normal operations will resume Monday, December 28th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Friday, January 1st in observance of
New Year's Day

Dultmeier Sales will be closed Thursday, July 4th and Friday, July 5th in observance of Independence Day.
Normal operations will resume Monday, July 8th. We wish you a happy 4th of July!!

We are experiencing some technical difficulties on dultmeier.com and apologize for any inconvenience.
If you are running into issues, please phone your order in to 1-888-677-5054

Customer Pickup Orders: to help reduce exposure for our customers and our employees, if you are placing an order for in-store pickup please call in your order ahead of time or place your order online and pre-pay with a credit card. Be sure to let us know when you plan to arrive. We will have your merchandise ready for you and will greet you outside our facility. Thank you for your help!

Plunger Pump Mechanics, Maintenance, Troubleshooting | Video

General Pumps demonstrates how to completely service and diagnose almost any plunger pump. Many plunger pumps share the same basic design, so actions shown in the video are applicable to most plunger pumps. The video includes how to disassemble and reassemble a plunger pump completely, how to inspect each individual part, how to service and repair those parts, and how to diagnose problems with your plunger pump.


Plunger pumps are a type of positive displacement pump that operate by expanding and contracting a cavity withing the pump. First, the cavity is expanded as a plunger rod moves away from it. This opens an inlet valve which introduces a fluid into the cavity. Then, the cavity is contracted as the rod moves back in. This closes the inlet valve and opens a discharge valve. The water in the cavity is pressurized and exits the cavity through the discharge valve.