FAQ What is the first step in installing the Indoor Furnishings? The first step is to push the baseplate against the wall.How can I tighten the retaining nuts? You can use the service key to tighten the retaining nuts.Should I lubricate the o-rings on the spout and handle escutcheons? Yes, lightly lubricate the o-rings with the enclosed lubricant before pushing the escutcheons onto the baseplate.