Re: Moving mud from under boat lift?
try a good gas pressure washer, and get the tip a few inches from the bottom.
for a long-term solution, do you think a jetty or dike would work?
if there is a current sweeping mud down, put the jetty upstream of that. any you will get more earth on the upstream side, and less on the downcurrent side.
at least that is how it work at the ocean, in ocean city, md. that is how the keep many inlets open