Presently my procedure of choice for aluminum tanks
is to fill them as much as possible with 50/50 Zep
Purple Cleaner and Degreaser, and water.
It has some mild acid in it so it dissolves any corrosion
in an aluminum tank resulting from moisture over years
of them resting. I wait till its pretty much done foaming
and dump most of it out.
Keeping with the duck tape & bailing wire solutions my
Boat House is equipped for, I have “Engineered!!!!!”an
alternative to the shake shake shake.
Video link – https://youtu.be/-cQ5c3Z5GGg
Tubs.
A "Boathouse Repair" is one thats done without having tools or the skills to do it properly.