In article ,
Peggie Hall wrote:

Second. I saw a three "lip" joker valve at West marine. Is that a
better arangement than the two lip valves shown in the diagrams?

The jury is out on that one. The X or + pattern was supposed to be an
improvement over the slit...but I know of a couple of mfrs who tried it,
then went back to the slit.

Here's a vote against the three "lip" jokers.

--
Jere Lull
Xan-a-Deux ('73 Tanzer 28 #4 out of Tolchester, MD)
Xan's Pages: http://members.dca.net/jerelull/X-Main.html
Our BVI FAQs (290+ pics) http://homepage.mac.com/jerelull/BVI/