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Head installation
I am replacing the porta potti on my boat with a real head. While thinking about installing the seacock/through hull for the head intake, the idea occured to me that it would be possible to T off the existing sink drain, and if I stoppedd the sink drain, I would still be able to create the suction needed to fill the head and thus avoid putting another hole in the hull. Actually I have decided not to do this, but it has me thinking and I wonder if the idea has been tried.
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