I've searched the following topic, but couildn't pick up a relevant thread, so appologies if this has already been done to death recently.
I'm completely rebuilding the head
compartment on my UFO34 and want to install a small blackwater holding tank
under the side decks, as well as having direct overboard
discharge, to cover all options.
I'm thinking a 25 litre holding tank
, which is quite small, but probably sufficient for the limited use it will get. I'm a bit space constrained too.
It would reduce the complexity of the plumbing
system if the holding tank gravity fed down to the through hull
fitting - probably a drop of say 30 - 60 cms (1-2 feet). I will be using the standard 1 1/2" piping, valves and thru-hulls.
The toilet is a manual Jabsco
, so the solids from the toilet WON'T be going through a macerator pump before reaching the holding tank.
My concerns are:
Will I end up getting blockages if I rely on gravity feed to discharge the holding tank into the sea?
Is there anything I can do (chemicals into the holding tank, etc) to reduce the possibility of blockages?
If I did instal a pump to assist discharge the holding tank into the sea, what sort of manual pump is recommended?
Just try not to visualise what we are talking about........!!