Which waste does your basin need?

Slotted describes the overflow connection.

A slotted waste provides a route for water from a basin’s overflow into the drain. An unslotted waste is intended for a basin without that overflow arrangement. Check the basin specification as well as the visible opening; unusual designs may have different requirements.

Write the basin code at the top of your shortlist. Ask your installer to confirm the required waste configuration against that exact model before adding a waste to your order.

Click-clack describes the action.

A click-clack waste opens and closes by pressing its top. It can be slotted or unslotted: the mechanism does not tell you which overflow arrangement it suits.

When comparing options, keep two separate questions on your list: “Does this fit my basin?” and “Is this how I want to operate it?” Resolve fit first, then choose the action and appearance.

Check what comes with the tap.

Do not assume a basin mixer includes a waste. Read the exact product’s inclusions and code, rather than relying on the range name or a photograph showing a complete basin arrangement.

If a listing says “without waste”, plan the waste as a separate purchase. If one is included, still confirm it suits your basin. A matching finish is only one part of the decision.

Keep the waste and the trap as separate lines on your installer’s checklist. Ask which components are supplied, which are required separately and which existing parts can remain.

Similar names. Different overflow arrangements.

These two Jaquar Allied wastes are both listed at 130 mm high. The difference to notice first is the slot configuration, not that shared height.

Use the basin’s exact instructions to decide which configuration it requires, then check the waste drawing and connections. Neither example is a verified pairing with an unnamed basin. A shared height or matching finish does not establish fit.

Manufacturer sheets checked 11 October 2026 for the two stated codes. Open the exact selected product and drawing before ordering.

A short checklist before you order.

• Basin: exact code, drawing and overflow arrangement.
• Waste: exact code, slotted or unslotted configuration and opening mechanism.
• Fit: ask the installer to check the waste opening, mounting thickness, connections and space below the basin.
• Inclusions: list the waste, trap and other fittings separately, marking what is already supplied.
• Finish: compare the named finish with the tap; use a physical sample where possible.
• Approval: record unresolved questions before placing the order.

For a replacement, photograph the existing arrangement above and below the basin. Send the product codes and photographs together so the team can see what needs checking.

Browse basin waste options, then keep the exact codes in your saved product shortlist. Search results are options to check, not a confirmation that a waste fits your basin.