Sea Going Systems
The majority of marine toilets are suitable for seagoing systems, however, some are more suitable than others.
Manual toilets have been around for many years and are perhaps the most widely used sea toilet.
Manual toilets with electric conversions are a more recent innovation although these conversions are often very noisy.
Macerator and Centrifugal toilets powered by a vessel's onboard supply are quiet and very efficient giving a more sophisticated feel to the heads. Both of these toilets are suitable for use with either a raw water supply via an on demand water pump or direct from the fresh water tank provided a siphon break or non return valve is incorporated.
Vacuum toilets are the most frugal of all marine toilets both in the use of water and power. They can use either raw water via a dedicated raw water supply pump or fresh water from the on board fresh water tank as a siphon break is incorporated in the vacuum toilet.
Holding Tank Installations
On many vessels the marine toilet is plumbed directly to a seacock in the hull for overboard discharge, usually via a siphon loop and a siphon breaker. The majority of modern vessels have provision for a holding tank although this space may currently be utilised for storage.
For those wishing to install a holding tank into an older vessel with an existing system the simplest method is to break into the discharge pipe from the toilet to the seacock and connect the tank directly into the line. Using this method the holding tank is in continuous use and will be kept "sweet". By fitting a discharge pump between the tank and seacock, waste will be able to be discharged from the holding tank and out to sea via the seacock once the vessel is under way.
Various installation suggestions will be found on our holding tank data sheet.