Four brands of polyethylene tanks are tested under pressure for bulging sides which can lead to cracking. One tank is the winner.
[Practical Sailor, 1 September 2000]
Toilet odor often comes from hoses that are look OK but are permeable to unpleasant smells. Eight hoses are tested and one is the hands-down winner.
[Practical Sailor, 1 April 2003]
Individual or central waste treatment systems
[Galley Maid Marine, West Palm Beach, FL, USA]
This might help you meet the MSD regulations with a tankless toilet. Five-gallon tank designed to fit around the base of Raritan and other manufacturers′ compact models. Portable or permanent mounting.
[Raritan EngineeringCompany, Inc., Millville, NJ, USA]
Custom manufacturer of tanks, including deck fittings, plumbing, pumps, gauges, and filters.
[Tek-Tanks Ltd., Upper Froyle, Hampshire, UK]
Huge range of polyethylene holding and fuel tanks in many shapes for bilge or locker. Web site allows searching the catalog by capacity.
[Ronco Plastics, Tustin, CA, USA]
Rectangular polyethylene holding tanks in sizes from 3 to 55 gallons.
[Todd Enterprises, Cranston, RI, USA]
Bio stimulants, a combination of nutrients that are necessary for optimal aerobic bacterial development and the fast removal of most odors. Primarily for large systems but marketed for marine holding tanks.
[BioMagic LLC, Costa Mesa, CA, USA]
Rectangular polyethylene tanks in many sizes, with top-mount hose fittings to reduce odor, and vacuum relief valves to prevent damage from high-vacuum dockside pumps,
[Dometic Corporation, Big Prairie, OH, USA]
Marine composting toilet reduces volume of solid waste, reducing frequency of pumpouts, and eliminating or supplementing holding tank, Simple operation, reduced smell, and low maintenance are claimed.
[EOS Design, LLC, Mount Vernon, OH, USA]