How to unclog syrup pumps?- Boda Electrical Appliances Co.,Ltd

Syrup Pump Unblocking Guide

Content

1 I. Identifying the Blockage
2 II. Five-Minute Quick Fix
3 III. Stubborn Blockage Resolution
- 3.1 Clean sugar residue from valves
- 3.2 Treat hose crystallization
4 IV. Tips to prevent re-clogging

I. Identifying the Blockage

Outlet Nozzle Blockage: Slow syrup flow but normal pump head pressure (like squeezing out a nearly empty tube of toothpaste)
Valve Seizure: Difficult to press the pump head/no rebound (similar to a broken ballpoint pen spring)
Pipe Crystallization: Syrup with particles or no flow at all (like sucking up icy shards with a straw)

II. Five-Minute Quick Fix

Hot Compress Dissolving:

Remove the nozzle and soak in 60℃ hot water (slightly warm to the touch but not scalding).
Blow hot air from a hairdryer onto the pump body for 3 minutes → Test pressure after the crystals soften.

Vibration Loosening:

Wrap the pump body in a thick cloth → Gently tap on a table (like tapping an upside-down ketchup bottle).
Use an electric toothbrush against the interface → High-frequency vibration to break up the syrup chunks.

Backflushing Cleaning:

Disconnect the feed tube → Draw warm water with a syringe and inject it back into the outlet.Use a syringe (purchased from a pharmacy) to forcefully squeeze and flush the tube.

III. Stubborn Blockage Resolution

Removing the Nozzle and Soaking in Vinegar: 1 part white vinegar + 2 parts water, soak for 30 minutes → Use toothpicks to clean crevices (avoid metal needles to prevent scratches)