lime scale on aluminum boat

[Larry from the Ozarks]

Can anyone help me, i bought a Bass Tracker III and it has lime scale all around the outside. what can I clean it with?

also I have a 40 hp mercury ser# 6054946, can anyone tell me the year and model?
thank you
Larry

 

[tashasdaddy]

Re: lime scale on aluminum boat

pressure wash, comet, elbow grease, looks like a 1982