Swap a tap's aerator to fix poor flow or splashing, with basic tools in under fifteen minutes.
AB-01Gather your tools and protect the sinkYou'll need the new aerator, an adjustable spanner or aerator key, a soft cloth, and maybe PTFE tape. Plug the sink or put a cloth over the plughole so nothing small drops down the drain. Turn the tap off fully before you start.
AB-02Unscrew the old aeratorLook at the end of the tap spout — the aerator is the small mesh disc screwed into the nozzle. Try turning it anticlockwise by hand first. If it won't budge, wrap the cloth around it and use the spanner, turning gently so you don't scratch the chrome.
AB-03Clean the threads and check for gritOnce the old aerator is out, wipe the threads inside the tap spout with the cloth. Check for limescale or grit — an old toothbrush works well if there's a build-up. Rinse any debris away so the new aerator seats properly.
AB-04Check the new aerator fitsAerators come in male and female thread types, and a few different sizes. Hold the new one against the tap spout to check the threads match. If it's a loose fit, you may need a cheap thread adapter, sold alongside aerators in hardware shops.
AB-05Fit the new aeratorIf the new aerator has a plastic thread, wrap one turn of PTFE tape around it for a better seal. Screw it into the tap spout clockwise by hand until snug, then use the cloth-wrapped spanner for a final quarter turn. Don't overtighten — plastic parts crack easily.
AB-06Test the tapTurn the tap on fully and check the flow is even, without splashing. Run your hand around the base of the aerator to feel for drips. If it leaks, tighten it slightly further — don't force it.
AB-07Tidy upDry the tap and surrounding area with the cloth. Rinse the old aerator and bin it, unless it's brass and worth recycling separately. Put your tools away.
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