Separate the three lengths
A replacement soap pump can have the right threads and still need its tube adjusted. For this PEHADU set, the seller's size graphic labels each separate tube as 17 cm (6.7 in). It also shows a 9.2 cm (3.62 in) pump assembly, excluding that separate long tube. Neither number alone describes the complete installed reach inside your bottle.
Do not add those two labels and call the result a maximum bottle height. Part of the assembly is above the closure, part extends below it, and the separate tube attaches to a connector. The bottle's thick base, shoulders and neck also make outside height different from usable interior depth. The supplied information does not establish a universal bottle-height limit.
Measure the actual installation
Start only after confirming the bottle's 28/400 neck finish. Use a clean, empty bottle and the supplier's instructions. Identify where the dip tube joins the lower pump connection, then compare the connected assembly with the space available inside the bottle when the closure is seated. If a measurement reference is unclear, resolve it before cutting.
The seller describes trimming the tube to suit the bottle depth but does not give a universal bottom clearance, cutting angle or trimming allowance. This guide therefore does not supply an invented millimeter gap. Mark only the excess established by your measurements and remove that portion with a suitable clean cutting tool. Cutting is irreversible; an uncertain measurement is a reason to pause.
- Confirm the bottle finish before using tube length as a deciding factor.
- Record internal depth and the position of the lower connection separately.
- Check the proposed assembled reach before removing material.
- Keep the tube opening unobstructed and follow any product-specific instructions supplied with the part.
Assemble, then check dispensing
A hand soap pump replacement involves both the connection and the liquid path. After measuring and trimming as needed, attach the tube to the lower pump connection and fit the closure to the compatible bottle. The listing says the head rotates 360 degrees to adjust the spout direction. That statement does not establish a travel lock, child lock or sealed transport setting.
Check that the installed tube is not visibly bent or pressed closed against the bottle. Use the intended liquid only when its suitability has been established. No fixed number of first-use presses, priming time or output per press is supported by the available information, so this guide does not promise that dispensing will begin after a particular count.
If nothing comes out, do not cut again by guesswork
Before shortening the tube further, recheck the connection, tube attachment and the intended liquid. A tube cut too short cannot be made longer by adjusting the pump head. A poorly matched neck or unsupported formulation will not necessarily improve with another cut. Stop if the assembly will not seat normally or the measurement no longer makes sense.
If the problem remains, describe the bottle finish, measured depth, installed tube position and liquid to the supplier. The available listing does not provide a diagnostic procedure or a verified viscosity range. Replacing a worn part may allow a compatible bottle to stay in use, but it is not evidence that every blockage, leak or pumping fault has the same cause.
| Observation | Recheck | Avoid assuming |
|---|---|---|
| Tube bends inside the bottle | Installed reach and internal shape | That the full 17 cm must remain |
| Pump does not seat normally | Neck finish and closure alignment | That cutting the tube fixes the threads |
| No liquid dispenses | Tube connection and liquid suitability | That a new head guarantees a cure |