Okay to place water butt against house wall?
We have a new water butt and will be placing it against the wall of the house, close to the necessary guttering. Our builder is talking about damp proofing the wall behind the water butt to prevent any damage. Is this necessary? I would have thought most people position their water butts near houses (because of the easy access to guttering) and it seems unlikely that every installation of a water butt would require treatments to the walls. The wall is rendered and painted rather than bare bricks.