* Brian Whatcott wrote, On 6/4/2007 9:19 AM:

There is one user group even more dependent on reliable engine
performance than water craft users - light aircraft pilots.

So it's no accident that a pre flight walk round includes a fuel
sample (off the bottom of all tanks, and at the prefilter) to dump all
water trapped in the fuel.

A sampler valve might be a good idea for boaters too??

I would second that. My previous boat had an aluminum tank that was
odd shaped with one corner sticking down. That corner collected about
a few ozs of water which eventually corroded through the tank. A
drain would have saved a nasty repair. In fact, I think it would be
hard to find a shop willing to do such a repair nowadays.