12 Toilet and septic tanks

The boat is equipped with a collection system for onboard waste waters. It includes a toilet, separate holding tanks for gray water and black water (septic), and the necessary equipment for emptying the tanks.

Enviromental hazard.

Discharging the holding tanks into the sea is harmful to marine life and against responsible seamanship in many countries.

Plan your trip so that you have access to the septic services at ports.

Find out local regulations about the handling of marine waste water before emptying the tanks into the sea.

Risk of material damage.

Leftover water in the system may freeze during winter lay-up and cause damage to the system.

Keep the septic system as empty as possible when storing the boat in freezing conditions. If necessary, use glycol as anti-freeze agent.

  • The holding tanks have surface level indicators. You can monitor the levels from the Yamarin Q screen at the helm station.
  • Clean the holding tanks, hoses and other components with a mild alkaline detergent.

For more information on the system and component locations, see subsections Blackwater system and Greywater system.