Originally Posted by Sabbatical II
On looking at specs for the new Jeanneau
509 in Cruising Helmsman magazine I'm horrified to see that it has only an 80 litre holding tank. Is this typical and how long would this usually last with say 6 people on board? I find it hard to believe that all these production boats anchored in the Whitsundays here are all "doing the right thing" if that is their holding tank capacity.
No, they are not doing the right thing, or at least I very much doubt it. One way we have found to dramatically extend the capacity of our holding tank is to have a squirt bottle of Head
Treatment on hand. Two squirts allows you to just keep filling the bowl with liquid waste without it either crudding up the bowl or smelling. It will also keep the lines clean. So, instead of having a disgusting yellow stink hole, you have a non smelly bowl full of blue water
. Using this method, our rather generous 300 gallon black water
tank lasts for a couple of months.