rusty screen top

[flybyferns]

Lija,
Here are some simple remedies. Rising is required.

5 Home Remedies to Remove Rust | Apartment Therapy

[deranged chipmunk]

coca cola bath and then clear coat it

[Lija]

I've tried vinegar, didn't worked too well, then soda, but now it is way better then before, the tank is empty so far will try something else from that list now too. thank you

[deranged chipmunk]

the only true way to remove rust is to bead blast it. but i'm guessing you probably don't have access to that sort of equipment. some autobody repair shops can do it, if you weren't in canada, i would have gotten it done for ya no problem.