Join Date: Aug 2006
Location: Grand Rapids, Michigan
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PVC Pipe for a holding tank?
I was thumbing through the current edition of Good Old Boat magazine and noticed a quick anecdotal article about replacing and old, stinky holding tank. Interstingly, the holding tank was replaced with a 6 foot section of 4" diameter PVC pipe (roughly 15 gallon capacity). The PVC pipe had fittings fabricated into one end for the inflow from the head and the deck pump out pipe on the other end. Somewhere in the middle a smaller fitting was attached for the vent hose.
Replumbing and possibly replacing the holding tank on my boat is on my spring "to-do" list. My current 15 gallon holding tank is under my v-berth and was factory installed before the molded cabin liner was installed over the top. Unfortunately, there is no way to remove the old tank without cutting it up and again, not much room to fit in a new tank through the small access hatch.
Is the PVC pipe holding tank a realistic option? If so, I'm sure a similar sized PVC pipe would fit nicely under my v-berth. Do you see any odor or leakage/filling/pumping issues with this idea? My initial concern is that the PVC pipe would need to be mounted such that the in-flow pipe was elevated higher than the outflow pipe.
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