$2500 FREE FREIGHT PROGRAM is for supplies, repair parts and whole goods. Tanks, pipe, sprayers and other large equipment are not included in this program. Applies to Continental U.S. ground shipments only.

Call for details! 1-888-677-5054


Dultmeier Sales will be closed Thursday, November 24th and Friday, November 25th in observance of Thanksgiving

Dultmeier Sales will be closed Monday, December 26th.
Normal operations will resume Tuesday, December 27th. We wish you and your family a very Merry Christmas!

Dultmeier Sales will be closed Monday, January 2nd in observance of
New Year's Day

Dultmeier Sales will be closed Monday, July 4th in observance of Independence Day.
Normal operations will resume Tuesday, July 5th. 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!

Due to the impending winter storm Wednesday afternoon and Thursday, ASAP Express is cancelling all operations effective noon Wednesday until midnight Thursday.

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.