Keith,
If your tubes look anywhere as good as in the picture of you pontoon, I would suggest the following process;
First, unless you have very serious oxidation (I doubt) or scum build up, I would NOT acid wash the tubes just to get ready for polish. You have already smoothed the metal in the past so it should polish back up with very little effort.
Instead of the full polishing process, you should be able to start with a secondary buff instead of primary. For that you will need the Hall Green Airway buff wheel #AWG 58-8 HA and the Green Chrome Rouge #JRGRN, you can order these from Zephyr.
Start by buffing a small section (6" x 6") at the tail of the pontoon well below the waterline. Basically, your just testing the results instead of committing yourself to a full-on buff job. If you like what you see... continue, if not you have only wasted about $24.00 on a wheel and rouge.
BigBlock - So if I get 3 of those Hall Green Airway buff wheels and 3 bars of that Green Chrome Rouge that's all I need? Do I also need to buy that AIRWAY BUFF SAFETY FLANGE. MANDATORY FOR USE WITH 8” & 10” AIRWAYS WITH 3” CENTER PLATES - 5/8” ARBOR HOLE. (SFPR 58-4) ?
My grinder is 7" so will these 8" wheels work ok on it?
I'm getting ready to order everything so I wanted to make sure I get this right.