Thin it down a little and use only an all plastic sprayer.

Pontoon cleaning with muriatic acid. It will also discolor your trailer. Yes there is a safe and right way to use muriatic acid to clean pontoon boats. The general applications and uses of muriatic acid are mostly found in the pharmaceutical food petroleum and metal industry.

When used in an enclosed area such as a public restroom the fumes can cause corrosion and discoloration even if the acid is not in direct in contact with the metal. And when faced with stubborn stains andor encrustations youll see rockhounds and quartz hunters cleaning rocks with products like citric acid hydrogen peroxide CLR and muriatic acid. I bought some muriatic acid and am getting anywhere from 5050 to 30 to 1 dilution ratio.

It will attack most of the materials it touches. I have used the mag wheel cleaner and it doesnt do any better than anything else and cost more. I would like opinions on dilution ratios.

If you are unsure about how long to leave the cleaner on the aluminum you can test it on a less-visible part of your pontoon. Stuff is on for less than a minute but instant clean. Muriatic acid is a very powerful corrosive.

The acid will not remove oxidation and will leave pitting on the pontoon. The pink coil cleaner does a little better than one of the others but I dont remember which one. It will still burn you.

I just have waterline and dirtdark streaks on the sides of the toons from the rail screwsnothing major. Spray it on scrub hose off. A word to the wise.