Hi there
This stuff does a fantastic job in cleaning and sealing an old rusty tank
Fuel tank restoration kit
www.ppcco.com.au/por19.htmlNot a quick process, but if you follow the steps and especially the washing and drying
A very good result on my tank
I started the wash out process with water only at first
Then some white vinegar mixed with water
That cleaned it up ok
But the results with the marine clean and the phosphoric acid I think it was in the kit
Could be happier
I have a better than factory new tank now.
To ensure a nice clean fuel supply
Good luck and follow the product instruction is my advice
Personal Protective equipment included
Cheers