Many newer boats do not have raw-water toilets but instead use water from the freshwater tanks. In this instance, the washdown pump can be plumbed from any other raw-water intake, such as a live-baitwell pump inlet. The exception would be the cooling-water inlet for engines or gensets, since simultaneous demand for water could starve the engine’s cooling capacity with dire results. This installation will assume a raw-water inlet is available. If not, install a new through-hull seacock.