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Old 04-23-2018, 06:02 PM   #16
MurrayM
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City: Kitimat, North Coast BC
Vessel Name: Badger
Vessel Model: 30' Sundowner Tug
Join Date: Jul 2012
Posts: 5,946
Quote:
Originally Posted by HeadMistress View Post
The vent LINE is rarely if ever blocked...unless it's clogged filter in the line-which happens when the tank overflows or you try to backflush the vent line--blockages almost always occur in the thru-hull and/or at the connection to the tank--both the vent fitting on the tank and that end of the vent line. So use a screwdriver, ice pick or whatever works to scrape out the thru-hull...knock out any screen, screens cause more problems they solve or prevent. Now that the pressure has been relieved, remove the vent line from the tank and scrape out the tank fitting and that end of the vent line.

You might also consider checking out the link in my signature...it goes to a comprehensive "marine toilets and holding tanks 101" manual that will help you learn how to prevent problems instead of having to solve 'em.
Ahhh, but for the simplicity of a urine separating, desiccating head
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