The owner of this older 20′ Wellcraft called Allpure Filtration because the boat had been sitting for three years. He new the fuel was really bad because it smelled terrible.
After a quick analysis, we concluded that the fuel was in a “varnishing” state, and needed to be removed. Varnishing occurs when fuel literally thickens or “agglomerates” when it ages. The color was very dark and it’s odor was… well lets just say it’s was “nasty”. Heavy solids also formed and accumulated on the tank floor as shown below.
Access to the fuel tank floor was gained by going through the sender opening. We then removed a great amount of solid contamination the tank floor. Additionally, a gallon of water was also removed. Finally, the remaining 30 gallons of bad fuel was pumped out for disposal.
Note: When your fuel smells like a mixture of butterscotch, stale maple syrup and paint remover – it’s really time to call Allpure. 239 540-8550.