Black water treatment system ZDS

for boats

A Type-III MSD may be used aboard any vessel regardless of size or geographic location. The system receives waste from one or more toilets and retains it for disposal at a dockside or marina pump-out facility, or directly overboard where legal to do so. Available in many sizes and shapes, but stocked in four standard sizes, GROCO Type-III MSD systems come complete with a TLM series level monitor and a powerful (17 GPM) macerator/discharge pump located inside the tank. ZDS Models include patented SWEETTANK® which keeps the holding tank odor-free at all times, without the use of chemicals or filters. SWEETTANK® can be added to older ZDS models. All tanks include an oversized vent to aid with high capacity dockside pumpout.