Drain holes need to be open as always.

House wont stand if the foundation wasnt solid. What was underneath the bedliner coating ? Moisture still got in there and attacked it anyways.

This stuff is about as good as it gets for keeping things from rusting.

http://petroleumservicecompany.com/tecty...CCABEgJ_QvD_BwE

and a GOOD spray setup that actually works.

http://www.chemicar.com/tools_spraygun_ucpro.php