I have a 3-port Gray Jandy valve that combines skimmers and main drain and sends it to the pump. The valve has a "hole" of some sort in the side. I originally thought this was some sort of connection for a pressure gauge but now think that this must be a lube-port. Anyway, water is coming out of this hole in a pretty steady stream. I've searched jandy.com and Googled but can't find anything that tells me how to lubricate the valve or what kind of seal/plug should be keeping the water from leaving the valve. Help!