I have a headmate head that functions reasonably well. It leaks a little from the top of the pump handle when you pump it, but other than that it works. But whenever it is used everyone on deck knows it because it stinks like hell. I keep the holding tank pumped out as much as possible and have tried adding that enzyme stuff to the tank.
Why is this happening? Is this a vent issue? Is it a holding tank issue? Can holding tanks be deodorized? Is there a way to wash out the holding tank? Like fill it with some kind of detergent and then pump it out? Any suggestions about how to eliminate this problem (pun intended)?