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post #1 of 2 Old 12-20-2002 Thread Starter
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What size seacocks

The discussion about portapotties got me thinking. I think I''m going to install a portapotti with a 6 gallon waste tank. I have one seacock near where I want to put this portapotti and I''m thinking that outside the 3 mile limit I could just plumb the portapotti to the seacock for discharge. (they sell portapotties with a pump out attachment). I had two questions (1) has anyone tried this, does it work, what type of pump did you use? and (2) how big does the diameter of the seacock have to be? The one already installed seems kind of small.
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post #2 of 2 Old 12-20-2002
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What size seacocks

My advise is to not empty the porta-potti in this fashion. Waste that has not been macerated requires a 1 inch seacock.
That is only the beginning. The hose leaving the seacock must rise above the waterline when heeled and contain a antisiphon loop. The only pump I would install to accomplish the pump-out is a manual diaphragm pump made by whale or bosworth. In the end it is much easier to do the dump as you would the old fashion cedar bucket. (where legal)
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