How to eliminate blackwater
With ever-more no discharge areas, and a range of different and sometimes confusing restrictions, a composting toilet is a great solution for boat owners. In the second part of a series on sustainable options for boaties, we look at new types of composting loos that completely eliminate blackwater waste.
Matt Paulin from Neptunes Gear, talks about a new category of product that removes the hassle and hazard from your boat’s septic systems.
“With a composting toilet like the Airhead there is no blackwater waste,” explains Matt. “The compost looks and smells like damp soil and can be disposed of in a garden, but not a food garden. The liquid is sterile, and can be disposed of anywhere.”
Matt says that the Airhead separates liquids and solids into separate tanks. The solids tank is 50% filled with coconut coir and some water to begin the compost process. Instead of flushing, the unit has a crank handle that stirs the deposits into the compost.”
There is a small computer fan which runs around the clock to provide the air required for the composting and drying process, but there are no chemicals and - best of all - no odour.
A number of companies provide composting marine toilets in New Zealand, but Matt supplies the Airhead brand (pictured), which sell for $1375 + gst.
“It’s as green as you can get with a toilet,” says Matt of the product that complies with all current and proposed discharge regulations, including zero discharge.
Space in any boat is at a premium and another bonus is that the space used for the holding tank, can be used for other things.
Found out about local Auckland regulations for black water dumping here