Thanks for all the great replies. Salty of course I'd rather test it, but I don't know where the raw water pump even is... I'm looking at youtube and through this forum today and I will certainly try to do the bucket test on my own. AgeTech I do plan on going out on the river this spring/summer! I'll be in touch if I need you and thanks for you're offer!!! How long of a float would that be to St. Joe? Thanks for all your guys help.