Ok I looked closer and my rubber boots are NOT cracked it was paint on it from the pipe. I still am going to double boot it with just the rubber pc so the sun wont rot the orignal.
I want to put a small bead of silicone or something around the bottom. Will regular black RTV silicone stick and NOT hurt the rubber ??
Or will GeoCel or what is the best sealant for this type of rubber that wont eat the ruber but will stick ?