I think the smelly holding tank
question has been done to death, but, If I could ask a couple of questions and propose a solution...
My holding tank
smells. This is because (I think) I bunged it into the forepeak of my boat without properly thinking the installation
through. Consequently, I only have a one inch vent line from the tank that winds its bendy way up to the deck
, so the tank itself is not well ventilated. If I were to put in a 2 inch vent vertically as recommended it would come through the middle of my double berth. Whilst this would not interfere with sleeping, it would not be beneficial in maintaining a harmonious relationship with my beloved. I understand from my research
that using chemicals in a holding tank to deal to odours is just masking the problem after it has already occurred, and that the real solution to odour control is to provide air flow through the tank so that the aerobic bacteria can thrive. Does anyone have experience of this, ie, does airflow through the tank cure the problem? It it does, what is required to have a happy tank, 2 or 3 air changes per hour, or 2 or 3 air changes per day??
My toilet is connected to the tank via a 2'' sanitation hose that is 4' long, dead straight and level and enters the holding tank at the top. I propose to put a 'tee' in this line where it passes through the bulkhead (about 1' from the toilet) and take a vertical 2" pipe up through the deck
and connect it to one of those little solar
vents. The theory is that this would provide forced draft
ventilation of the tank, with the incoming air exiting via the existing 1" vent line.
Before I start hacking into my boat and it systems, I would appreciate any feedback as to whether this is a daft idea or not.