I don't want to melt freshwater tank

[bertro]

I need to replace a small peice of plywood at the entrance of my 71 safari. I want to weld a short lenght of angle on the frame rail in the step pocket between the step outriggers to get a better fasten on the ply and avoid having to break a joint right on the frame rail. I know the freshwater tank is in there somewhere but how close to the frame rail I don't know. Can anyone tell me if it's tight to the frame and will a fastener through the frame at this point penetrate the tank or a weld on the side of the frame melt it. Thanks Robert

[Aerowood]

I have a 71 Globetrotter 21' and the tank sets approx 2" from the vertical web of the frame.

[bertro]

Thankyou Areowood, I didn't want to dismantle to much going into the season. I've replaced the rear 4' in one piece and what a job. This should get me by for now as the children and I are chomping at the bit to get out. Thanks again for the reply.

[Sky]

Might be a good idea to fill the tank prior to welding.

YouTube - Heating a Water Balloon