This pump requires no regular internal maintenance during its life.
The rest of the air system should be periodically checked and cleaned.
Air lines should be carefully inspected whenever standard aquarium maintenance is performed.
Adjust, or if required, replace all sections which are pinched, kinked, or otherwise damaged.
All attached air driven aquarium ornaments should be regularly maintained.
Two complete sets of air stones alternately changed each month will extend the life on the air stones and help keep back pressure to a minimum.