Destroyer
God
Sounds quite effective...........but how can you be sure all termites will be killed ?
Those that have burrowed down deeply below, around the fuel tank and lower ?
I say - pour one gallon of gasoline all the rig, light it, run.
After it's burned completely out - the termites will be gone.
Although your method will work, it's a bit drastic, don't you think? Plus you have all those environmental problems with oil and gas on the water and removal of the debris and such.
As to the sulpher fogger, the fumes go everywhere. That's why you tent it. If the bug burrowed, the fumes will go down that same burrow hole. They can't hide. I'm speaking from first hand experience on this one.. not with a boat, but with a house I used to own. One fogger in each room, two in the attic and two in the basement and 12 hours later the house was totally clear. Of course it smelled like rotten eggs for the next week, but that was a small price to pay for being bug free.