ODOR FREE STORAGE TREATMENT® coats the inside of the plumbing, hoses, waste holding tank with ODOR FREE® to prevent mal odours from stinking up the inside of your boat during winter storage.
There are several possible causes of a smelly head on a boat. The hardest part is to determine where the smells are coming from. After that it should be fairly easy to fix the problem. There are a few variables that you have not covered but we will try to deal with those as well.
The possible causes are: • Holding tank is full and needs to be pumped out • Blocked vent forcing the exhaust back into the boat • Sludge build up in the holding tank • Blockage in pump out hose • Defective or non-functioning macerator (optional on some boats) • Defective or non-functioning vacuum flush system (optional on some boats) • Damaged hoses usually caused by age or from using inferior holding tank chemicals or homemade concoctions or no chemicals at all, resulting in permeation odors. • Disconnected or leaking hose • Damaged or plugged Duckbill Valve • Damaged or plugged Flapper Valve • Salt water used for flushing
Click here to read full answer