"timmynocky" wrote in message
...

I’ve been toying with the idea of making water tanks for my boat but
was dubious about using epoxy as a lining. I didn’t think it would be
safe enough for drinking water.

Like I said: epoxy paint for water tanks. Special stuff that doesn't contain
any solvents.
For instance SikaGard, a High Build epoxy coating. This system is a
two-component solvent free, high build coloured epoxy resin coating with
high chemical resistance, and approved for use in contact with
potable(Drinking) water.

Meindert