Entry-level model marine toilets with substructure pump
On-board WCs with substructure pumps make for entry level marine toilets. Due to their design, the pumps used here (chopper and impeller pump combination) are quite noisy and the noise generated by them is sometimes enormously loud.
Marine WCs with china bowl
Because the pump is installed within a china bowl, there is also the possibility of adding additional insulation. These toilets are much more preferable to traditional on board toilets. The energy and water consumption of the toilet results from the duration of the rinsing time (as long as you hold your finger on the flush button, the toilet will continue to flush).
State of the art electric marine toilets
The latest trend in the area of on board toilets are electric toilets with high-volume choppers (about 80-120 mm ⌀). In conjunction with their very quiet motor noise, these are comparable with household toilets. The flushed water is carried out either on-board, into a pressurized water system or separate pump (fresh or seawater). These toilets with large choppers come with a "smart" controller, so that the amount of water and pumping time can be adjusted exactly, according to the conditions on board. As a general rule, these controllers offer an "Economy button" for small flushes. The water consumption for these systems ranges from about 1.5 to 3.5 liters. These toilets are very suitable for use with a holding tank. Overall, these toilets provide all of the comforts of home and are very reliable.