
Illustration.
What it does
The skimmer box draws water from the pool surface, where leaves and insects float, and the basket inside catches them before the water reaches the pump. A full basket starves the pump of water, which is hard on the pump and the filter.
How often to empty it
Check it every few days, and daily in autumn or after a storm. Turn the pump off before lifting the basket.
Finding the right replacement
Skimmer baskets are not universal. The basket must match your skimmer box's make and model, which is often moulded inside the box or on its lid. Measure the old basket's diameter and height, and note the handle shape, before you buy. A cracked basket lets leaves through to the pump basket and impeller.
The vacuum plate and lid
A vacuum plate sits on top of the basket so a suction cleaner or hand vacuum can connect through the skimmer. The lid on the coping keeps feet and kids out of the box; replace it if it cracks, because it is a trip and safety hazard.

A floating lid or a leaf net over the pool in autumn saves you emptying the basket twice a day.
Common questions
Are pool skimmer baskets universal?
No. Match the replacement to your skimmer box's make and model.
How often should I clean my skimmer basket?
Every few days, and daily when leaves are falling.