This fender, the entire valve can unscrew.
Using a hand pump, the pump can not overcome the valve design and seperates.
Does this kind need an air hose compressor pump?
the black rubber covers the white hard plastic, in the white hard plastic are 2 sideways holes to let in the air. the black rubber part completely covers the little holes. the needle is a tight fit in the white plastic. Without the black rubber, the hand pump easily passes air. It appears that it takes a lot of pressure to make this valve design pass air, force open the black rubber. The black rubber will come off the whiter plastic valve.
Both are Taylor made fender and Taylor made pump.
I answered my own question, they call this a trivalve.
Are these any better fenders than the cylinder shaped fenders they sell?
If not then why bother with the special trivalve design?
Q: How do I inflate my tuff end buoy with a tri-valve?
A: The valve on this fender requires the use of a high pressure air pump. We suggest using a pump with an output of 20-30 psi. Recommended inflation on the Tuff End Fenders & Buoys in 2 psi. Tuff End fenders and buoys are manufactured with our Patented Trivalve. It requires a decent amount of air pressure to move the air through the valve so that it escapes the positive check valve (which is the black sleeve at the bottom of the valve. Note the hole where the air escapes into the buoy is on the side of the white valve tube, underneath the rubber sleeve. Higher air pressure helps the air escape out this hole). Please contact Taylor Made Products customer service with any additional questions at our toll free number 800-628-5188.