Upcycle a large bottle into an XXL soap dispenser

Some bottles are simply too beautiful—and too large—for the recycling container. A rounded juice bottle, a distinctive spirits bottle or another substantial glass container can become a genuine feature. Add the right pump and it turns into an XXL soap dispenser that needs refilling less often while still looking completely individual.

With a large bottle, however, there is more to consider than appearance. The base must be stable, the tube needs to reach almost to the bottom, and the pump has to sit securely. This guide takes you through selection, measuring and assembly without drilling glass or using complicated tools.

Why an XXL soap dispenser is practical

A larger dispenser is particularly useful wherever soap or washing-up liquid is used frequently. It reduces refilling at the kitchen sink, makes a characterful focal point in a guest bathroom, and is simply convenient in a busy household.

The idea is not to buy as many new things as possible. The best starting point is a stable bottle you already own and genuinely like. You keep an existing object in use and combine it with replaceable components.

Choosing the right large bottle

Before falling for an attractive label or unusual colour, check four practical details:

• Stable footing: A wide, level base is less likely to tip when you press the pump.
• Undamaged glass: Never use a bottle with cracks, chips or a sharp rim.
• Accessible opening: The neck must be easy to clean and able to connect securely to a pump.
• A suitable location: Measure the total height including the pump and check that it fits below a cupboard or on the washbasin.

Very slim, tall bottles can look elegant but may tip more easily. The larger and heavier the contents, the more important a solid base and enough free space around the dispenser become.

Thread or sealing ring?

Start by examining the bottle neck. With a compatible screw thread, the pump attaches directly. Altglas pumps with a 28-400 thread fit many bottles with a thread diameter of approximately 26 to 28 millimetres, although compatibility always depends on the particular bottle and size.

If the bottle has a smooth cork neck or no suitable external thread, measure the inside diameter of the opening. The Altglas sealing-ring set contains three adapters for openings measuring 18–20, 20–22 and 21–23 millimetres. They are designed specifically for Altglas pumps.

Measure more than once because glass openings can be slightly irregular. A caliper gives the most reliable result; with a ruler, a difference of one or two millimetres is easy to miss.

The key component for tall bottles: a longer tube

A pump can dispense only when its tube reaches the liquid. Standard Altglas pumps include a tube approximately 20 centimetres long. For especially tall bottles, there is a set of four 30 cm replacement tubes. It is compatible with every Altglas pump except the 24 mm version.

Longer is not automatically better. A tube that curls tightly against the bottom can restrict the flow, so always adjust it to the individual bottle.

Step by step: building an XXL soap dispenser

1. Clean the bottle thoroughly

Remove the label only if you prefer a clean glass look. Some bottles are appealing precisely because of their original design. Either way, the inside must be clean, free from odours and completely dry. Rinse it with warm water and mild washing-up liquid, then leave it upside down to drain.

2. Check the closure and opening

Test the thread without using force, or measure the inside diameter for a sealing ring. The pump must eventually sit straight and securely. If it wobbles, catches at an angle or requires pressure to install, the connection is not suitable.

3. Determine the tube length

Attach the 30 cm tube to the pump and hold the assembly against the outside of the bottle. Mark it so the installed end will sit just above the bottle base. Remember to account for how far the pump or sealing ring extends into the neck.

4. Trim the tube neatly

Cut the tube at a slight angle using clean household scissors. The angled end leaves an open intake even if it briefly touches the glass base. Begin slightly too long rather than too short—you can always trim it again.

5. Assemble it dry and test the stability

Fit the pump to the empty bottle. Press it several times and watch whether the bottle tips or the pump moves. Check that the tube hangs freely rather than bending sharply.

6. Fill and prime

A small funnel prevents spills. Do not fill right to the top because the pump mechanism and tube displace liquid. Install the pump and press slowly until the product has travelled up the tube.

Which pump style suits a large bottle?

On a large bottle, the pump becomes an intentional design detail. The Budapest pump has a clean, slightly taller silhouette. Zagreb is more compact and is available in a selection of finishes. Both can be combined with the 30 cm tube.

Take your cue from the colour and shape of the glass. Stainless steel feels calm and modern, dark finishes contrast strongly with clear or green glass, and warm metallic tones work especially well with amber bottles. Several versions may be technically suitable while looking completely different—that is what makes a DIY project personal.

Good places to use a large dispenser

At the kitchen sink

A large washing-up liquid dispenser is useful in a kitchen where people cook every day. Place it on a dry, stable surface and wipe away splashes regularly. A small tray catches drips and keeps the area tidy.

In the bathroom

On a wide vanity, a large glass bottle can hold hand soap or another suitable care product. Glass is less ideal in a wet shower where knocks and slippery surfaces are common, so choosing a safe location matters.

In the utility room

A large dispenser can also be useful beside a deep utility sink. Label the contents clearly and never fill a pump with aggressive cleaners unless it is expressly designed for them.

Safety and everyday use

A repurposed drinks bottle must be labelled clearly, especially when the original label remains or children live in the household. Use a waterproof sticker and do not keep the dispenser among food or drinks.

Glass is durable but not unbreakable. Do not place a large bottle directly on an edge. Press the pump from above instead of loading it from the side, and always lift the dispenser by the bottle—never by the pump.

Pro tip: fill it only partway for the first test. This lets you calmly check that the pump, tube and connection are stable and leak-free before adding the full amount.

Care and refilling

Do not endlessly pour fresh product onto old residue. When deposits appear at the bottom, you change soap, or the pump stops working evenly, empty and clean the dispenser. Draw warm water through the mechanism, rinse the bottle and let every component dry fully.

The 30 cm tubes come in a pack of four. Keep the extras as replacements or use them for other compatible Altglas pumps. This keeps the system repairable instead of replacing everything because of one small worn component.

Conclusion: think big, keep it simple

An XXL soap dispenser is a surprisingly simple way to keep a distinctive large bottle in everyday use. The essentials are a secure base, the right connection at the neck, and a tube ending just above the bottom.

With a compatible Altglas pump, a sealing ring where needed, and the 30 cm tube, an overlooked bottle becomes a practical refill dispenser. Which large bottle have you been keeping simply because it was too beautiful to throw away?