Our local birds were so excited about me replacing our Jandy spa side switch, they helped themselves to a portion of one of the button coverings. (The small, round, rubber parts with the raised number.) Since the switch is on the side of the spa, I can't think of a way to cover the unit. Is there something that I can replace the missing portion with? Some waterproof caulk, for instance? The unit is only 3 weeks old and the waterproof membrane over the actual button is intact, continuing to work fine. They never touched the one we replaced, of course. Thanks.