Why Won't My Pump Draw Soap? Priming and Dip Tube Fixes

Short answer: nine times out of ten the pump simply isn’t primed. Press it fully down and release it 8–10 times without stopping. If soap still doesn’t come up, the dip tube is either too short, kinked, or the liquid is too thick for the pump.

Work through these in order

1. Prime it properly (fixes most cases)

A new pump is full of air. It needs several full strokes to pull liquid up the tube before anything comes out the nozzle.

• Press all the way down and let it rise all the way up — half strokes never prime a pump.
• Do this 8–10 times in a row. Most people give up around four.
• Check the nozzle is unlocked. Many pumps lock by twisting the head clockwise; turn it counter-clockwise until it rises.

2. Check the dip tube actually reaches the bottom

The tube has to sit in the liquid. A pump built for an 8 oz bottle will thread onto a 32 oz bottle perfectly and then draw nothing but air, because the tube ends three inches above the soap.

Take the pump out and hold it beside the bottle. The tube should reach within about a quarter inch of the base. Tubes can be trimmed shorter with scissors; none can be made longer.

3. Look for a kink or a curl

Dip tubes are shipped coiled and sometimes stay curled. A tube pressed against the side of the bottle, or bent where it enters the pump, will restrict flow badly. Straighten it by hand, or run it under warm water for a few seconds and hold it straight while it cools.

4. The liquid may be too thick for that pump

Narrow bathroom pumps are built for hand soap and lotion. Undiluted laundry detergent, castile soap and thick conditioners will stall them no matter how well you prime.

Two fixes: dilute the soap slightly with water, or move to a wide-bore pump built for thick liquids.

If it worked before and stopped

A pump that used to work has usually dried out or clogged. Soap left in the mechanism hardens, especially anything with a high glycerin content.

1. Unscrew the pump and stand it in a glass of warm (not boiling) water, tube down.
2. Pump warm water through it 20–30 times until it runs clear.
3. Let it drain nozzle-down before putting it back.

If warm water doesn’t restore it, the internal spring or seal has gone. Pumps are consumable — the glass lasts years, the pump lasts months to a couple of years depending on what runs through it.

Still stuck?

Send a photo of your bottle and pump to support@kitchentoolz.com and we’ll tell you what you need. A real person answers, usually the same day.