Anything that is towed may get eaten by fish. Same problem has been reported by folks towing knotmeter impellers and water generators, anything that is trailing your boat may be mistaken for lunch. I guess the question is, how strong is the unit and how strong is the line attaching it?
And will they warranty it against being eaten?
They do say:
"The typical Waterlog impellor weighs 3 Lbs (1.4 Kilo), is 12 inches (30 cm) in diameter, and spins at speeds up to 1,100 r.p.m. If a large shark were to bite it, its head would be removed. For example, a fish never takes on a boat propeller, which is not dissimilar in size and speed. Having done countless crossings of all the oceans of the globe, there are no reports of any sea creature attacking one.
Further, there is an unbroken continual load path of steel from the impellor right through the towing tube to the boat. (The towing tube has an internal matrix of woven steel mesh surrounding the smooth food grade central core tube). The design load is half a ton and ultimate breaking strain of more than three times that figure."
Last edited by hellosailor; 08-25-2006 at 04:53 PM.