Join Date: Feb 2002
Location: Texas City, TX
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There are several options when it comes to holding tanks. The best option would be to custom fit a plastic holding tank under a bunk, in the V-berth, or under the floorboards. A simpler quicker solution is to buy "bladder" type expandable bags that will conform to the shape of the space as the bag fills.
You definitely don't want to risk discharging in a no discharge zone.