Reginald P. Smithers III wrote:

I use Peggies product, and it helps, to keep the stink from coming back
into the head, but when the boat rocks, and the wind is blowing just the
right way, you can get a great whiff from the stink coming from the vent.

The key I have found to keep the stink from coming into the head and
vberth is to keep the bowl full of water or antifreeze in the winter.

I'm sorry, Reggie.

I didn't read down the listings far enough before I jumped the gun with
my last post