Peggy, I have a 2005 Cat 310 with a WC Headmate. Just wanted to get your view on installing an in-line sanitizer to the water intake. Also, though I can probably get this from the owners manual, a stupid question, which hose is the water intake (the one that goes to the bowl, or the other one one below it)...not sure if I want to do this at the seacock, or next to the head...thanks in advance....