Flush your system with freshwater after every use. We have customers still using the first units we built back in 1998 because they flush their systems properly. Spectra Watermakers are constructed of modern composites and engineered plastics to deliver many years of quiet, reliable service. Since the Clark Pump is hydraulically driven, it has slow moving parts that do not wear easily. You can ensure your watermaker lasts many years by regularly changing your prefilters and flushing it as recommended.