Q: What fittings do I need on a black waste holding tank?
A: A standard waste tank would normally have a Inlet coming from the toilet, a deck pump out fitting complete with a dip pipe, a vent fitting and a discharge outlet to sea.

Q: In general, what size fittings would you recommend on a waste tank?
A: We recommend 1 ½” 38mm elbows or straight hosetail fittings throughout.

Q: How high does an anti-syphon loop need to be?
A: On a sailing boat taking the yachts heal into consideration the anti -syphon ideally needs to be 250mm (10”) above the water line. If the tank or toilet is either on or below the waterline then the system should be treated as below the waterline.

Q: Why and when do I need to have a loop in my pipes?
A: When the inlet or outlet hoses are plumbed overboard, below the waterline and terminating inboard below the waterline, they must be looped above the waterline to prevent siphoning.

Q: Why do you recommend an 1 ½” vent for a black waste tank?
A: Sewage contains aerobic bacteria which breaks down the waste and anaerobic bacteria which produces the smell. The aerobic bacteria need a good flow of oxygen to survive and an 1 ½” fitting provides this. Whereas anaerobic bacteria thrive in an airless environment so the oxygen in the tank keeps this bacteria and subsequent odor at bay.

Q: Do I need a Charcoal Vent?
A: When the toilet is being used or in heavy seas its is possible for odor to pass over the boat. If you have a decent tank vent odor is kept to a minimum. You could just fit one or retro fit one if the issue arises. Charcoal filters are quite large take a look at the Pong Go charcoal filter

Q: What sanitation hose is best?
A: Sanitation hose varies in quality which is largely indicated by its price the more you spend the better the hose. A reasonable quality white PVC hose should have antibacterial chemicals within the material and this should marked as such on the hose. A butyl rubber hose is better Tek Tanks keep a 5 year and 10-year warranty hose.