Question, I'm doing a custom install of an apron front sink. I have a couple of questions though. Do I use construction adhesive to glue down the sink? It is an under mount sink sitting on a custom support I built. Granite will be installed over it. What keeps it from moving backwards if leaned on? Second question. I use to have a double bowl and this is a single bowl. I'm installing my garbage disposal in the hole and plan on capping the other drain. Is there anything I need to do besides that or can I just cap the second drain?