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Date Posted: 17:38:03 08/10/09 Mon
Author: Rick
Subject: Re: A sustainable marine head?
In reply to: Bob 's message, "Re: A sustainable marine head?" on 07:35:31 07/12/09 Sun

I installed an Airhead in my boat about four years ago. It definitely beats a marine toilet and holding tank. No smell, no thruhulls, and uses only a tiny bit of power to run a computer fan. As with any composter, warmer temps mean faster composting. I live aboard in southeast alaska and I keep the boat near room temperature unless I'm traveling. The solids tank usually lasts 3 or 4 months. The liquids tank lasts 4-5 days. I bought an extra liquid tank so I can switch them out and dump at my leisure. The airhead really does compost---however....when the solids tank is full, you actually have a combination of materials at various stages of decomposition, i.e. the newest additions will not have composted. So I only dump it in the harbor portapotty. Its an annoying but simple job, and I only have to do it 3 or 4 times a year. Certainly no worse than a pumpout station.

That said, I think the Airhead is way over-priced. Its essentially a plastic bottle and a bucket with a handcrank mixer and and a outlet vent. If I had to do it again I think I could build one out of commonly available materials. Might not look as elegant as an airhead but would probably work just as well and cost less than $50 for the parts.

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Replies:

  • Re: A sustainable marine head? -- Nicky, 07:01:17 08/11/09 Tue
  • Re: A sustainable marine head? -- Bob, 08:17:04 08/11/09 Tue
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