We had problums with this one also. If you absolutely cant find a tank repair it.

A motorcycle shop in your area has no doubt had plenty failed tanks to repair. and then have it plastic coated on the inside.

The problems stem from the use of fuel with ethanol it attracts watter and dosed not work well in a gen set that spends lots of time setting.

Begin using fuel with a fuel stabiliser and keep it full, Air also has water in it.

r/
David