KlargesterAccessories / Spares

Klargester plants vary by model and age, so parts such as blowers, diffusers and control panels are not universally interchangeable. Check the data plate on your tank for the model name and serial number, and have this to hand when ordering or calling for advice. If you're unsure, our team can help match parts against your plant's specification.

The air blower pumps air down to the diffuser, which releases it as fine bubbles to oxygenate the treatment chamber and keep the biological process working. They're paired components — a worn diffuser reduces treatment efficiency even with a healthy blower, and a failing blower starves the whole system of air. If one needs replacing, it's worth checking the condition of the other at the same time.

Air blowers typically run continuously and are usually good for several years, but diaphragms and membranes inside them wear faster and may need periodic replacement. Pumps and filters depend heavily on usage and how well the plant is maintained — an annual service visit is the best way to catch wear before it causes a failure. Keeping a spare set of common wear parts on hand reduces downtime if something does go.

Straightforward swaps like an external air blower are often manageable for a competent DIYer, provided the power supply is isolated first. Anything involving access into the tank itself, electrical control panel wiring, or work on the treatment chamber should be carried out by a qualified engineer for safety and warranty reasons. If in doubt, check your plant's manual or ask us before starting.

We stock a mix of genuine Klargester parts and quality compatible alternatives sourced from reputable manufacturers, and each listing makes clear which you're buying. Genuine parts guarantee an exact match to original specification; compatible parts can offer good value while still meeting the performance the plant needs. Our team can advise which option suits your situation if you're replacing an older or discontinued component.

An alarm usually indicates a high water level, blower failure, or an electrical fault in the control panel, rather than the alarm unit itself being at fault. First check the blower is running and the power supply is intact, as this is the most common cause. If the alarm persists after checking these, a replacement control panel or a professional diagnostic visit is likely needed to identify the underlying issue.