Jabsco Quiet Flush marine toilets provide both quiet operation and user control of water levels in the toilet bowl. Pushing the flush button rinses the bowl and activates the macerator pump. Quiet Flush models also feature an additional rocker switch for control of the rinse water supply and discharge pump separately so the bowl water level can be easily raised or lowered by the user. Minimize water use or raise water level. It also allows for complete evacuation of the bowl water while underway in rough sea conditions.