I designed this kitchen sink soap dispenser funnel to greatly aid the refilling of liquid dishwashing detergent into the dispenser. A built in vent system allows trapped air to escape and the extra length keeps the soap filled to the proper height. Fill the soap until it reaches the bottom of the funnel and the maximum soap level is acheived without spillage. This has been very useful.Remove soap dispenser pump from top of dispenser. Push funnel into dispenser until it stops. Fill soap, watch for soap to reach bottom edge of funnel. Remove funnel, replace soap pump.