Cleaning fuel containers

[Chops]

Gday guys,,
I have a couple of old Jerry Cans that have carried both petrol and deisel. I can't really see any problems with them, but I would like to clean them just to be sure, they will then only be used for deisel.
I'll also be building a fuel cell/tank to sit in the back of the car on a permanent basis, so I'll need to make sure it's clean too.
So my question is, what's the best way to clean them?

[brenno]

Soapy water?? :wasntme:

Sorry Chops, couldn't help myself. ;)

Get softy to do it, then you can blame her. :p

[Bearman]

As above, hot soapy water, rinse well and leave out in the sun to dry completely.

[Blknight.aus]

a little petrol to rinse out the gum

hot soapy water
cold water to flush
a quick rinse with hot water and then leave in the sun or run compressed air through them to dry them/.