ASW27 Wing water tank

Hi Hank,
Last summer a small leak developed in the diaphragm in the one way valve
glued to the water tank screw cap(vents when dropping water). Do you
have any replacement diaphragms? If so, I would appreciate it if you
would send me one.

I am considering going to Mifflin next year --- just have to convince
myself to make the long drive and find a tow car since my Motor home is
too large to crew with.

Take care,
Ray