On Monday, October 15, 2018 at 5:49:16 AM UTC-7, Roy B. wrote:
Pier
I had this problem with my '29 but not as bad as your situation. I figured that something was blocking the tail vent tube. I used a device called a "baby aspirator" (used to gently clean snot from a baby's nose) to work some warm water backward through the vent in the side of the fin. The problem got better - but never back to the way it was when new.
ROY

Think we'll be working on my 29 tail tank this winter, am hoping to install a better way of filling (from the top, what a concept) instead of through the dump valve.
Similaraly bypassed the factory tail tank fill method on LS6 #46. Removing the horizontal stab to fill was foolish.
Film at 11.
Jim