If you need to transfer liquids (water, fuel, oil, chemicals) from a 55-gallon drum, you can build a simple manual drum pump using basic materials. Here’s a step-by-step guide:
(Best for water, non-hazardous liquids)
✔ Clear vinyl tubing (½" or ¾" diameter, long enough to reach drum bottom)
✔ Plastic hand pump (e.g., drill-powered pump, bicycle pump, or squeeze bulb primer)
✔ PVC pipe or metal tube (for rigid dip tube)
✔ Check valve (optional, to prevent backflow)
✔ Hose clamps (to secure connections)
✔ Drill & hole saw (if modifying drum lid)
Make the Dip Tube
Attach a rigid PVC or metal tube to the vinyl hose (helps reach the drum bottom).
Insert the tube into the drum (through the bung hole or a drilled hole).
Add a Hand Pump
Connect a squeeze bulb primer (like from a boat fuel line) or a manual rotary pump.
If using a bicycle pump, reverse the valves to act as a suction pump.
Prime & Start Siphoning
Squeeze the bulb or pump until liquid flows.
Once liquid starts, gravity will keep the siphon going.
(Best for faster transfers, light oils, water)
✔ Small centrifugal pump (e.g., 12V DC pump or drill-powered pump)
✔ Electric drill (if using a drill-powered pump)
✔ Vinyl tubing (for inlet & outlet)
✔ Power source (battery or AC adapter for 12V pumps)
Attach the Pump to the Drum
Insert the inlet tube into the drum (use a rigid dip tube if needed).
Secure the outlet tube to direct liquid where needed.
Power the Pump
If using a drill-powered pump, connect it to an electric drill.
If using a 12V pump, connect to a battery or power supply.
Start Pumping
Turn on the drill or power supply to begin transferring liquid.
(Simplest method, but requires elevation difference)
✔ Long vinyl or rubber hose (½" to 1" diameter)
✔ Funnel or container (to start siphon)
Submerge the Entire Hose in the drum to fill it completely.
Cover One End, pull it out quickly, and place it below the drum.
Release the Covered End—gravity will start the siphon.
⚠ Use chemical-resistant tubing for fuels/solvents (e.g., Norprene for gasoline).
⚠ Avoid sparks when pumping flammable liquids.
⚠ Vent the drum if pumping volatile liquids to prevent vacuum lock.
| Method | Best For | Pros | Cons |
|---|---|---|---|
| Hand Pump | Water, light oils | Cheap, no power needed | Slow, manual effort |
| Electric Pump | Faster transfers | Efficient, good for large drums | Needs power source |
| Gravity Siphon | Emergency use | No tools needed | Requires height difference |
A DIY drum pump can be made easily with basic parts. For frequent use, consider buying a commercial drum pump ($20–$100). Would you like recommendations for specific pumps?