Nigel Calder recommends an arrangement that vents the anti siphon loop
from the cockpit - above the waterline - eliminating any problems that
would occur if the vent does decide to leak.

Mike.


Keith wrote:
Then replace it. If there's no buildup on it, it must be worn out,
scored, or otherwise defective.

Geoff Schultz wrote:
Thanks for the suggestion, but I'll repeat my statement that there is no
buildup on the valve.