Ensure that the air pump is receiving a clean, fresh air supply.
If you have recently had a pump fail check the back pressure on the pump. We can supply pressure gauges so you can do this
Ensure you pump is not liable for flooding. It is an electrical device and whilst rainproof, is not waterproof
Ensure that the tubing pipe diameter is kept as close to the pump outlet as possible. This will reduce any artificial pressure, which may reduce lifetime between diaphragm changes.
If using for an aquatic application with small bore manifolds leave at least one tap fully open, venting into water, this will help any pressure known to be created by aquatic air stones.
Clean the filter regularly. Annually as a minimum, more frequent if you suspect ingress of dirt