Priming
A new dispenser needs several full strokes to fill the chamber and the dip tube before it delivers its rated dose. A partial stroke pumps air. If a line operator reports low output on a first sample, the usual cause is an incomplete first stroke rather than the pump.
Dip Tube Length
- A tube cut too short leaves product in the base of the bottle and draws air near the end of the pack.
- A tube cut too long bends against the base and can kink, which shows up as inconsistent dose.
- Send the bottle height and shoulder profile, or a sample bottle, so the tube is cut correctly.
Transit And Storage
- Where a pack must not discharge in transit, specify the right left lock pump rather than relying on a friction fit.
- Store cartons flat and dry. Carton measurements and weights are published on each product page so racking can be planned.
- Keep filled samples for the shelf life you intend to claim, and check dose again at the end of that period.
Foam Pumps Specifically
A foam pump needs a formula designed to foam. If the output is wet rather than foamed, check the formula and the fill level before changing the pump. Our foam range is documented at 0.4 cc on 30/410 and 0.8 cc on the 40 mm series.
