Water in fuel

[Don Bradner]

Blue Thunder sat unmoving most of the summer. Last fueled at Seven Feathers in
Oregon in late May, and tank was a bit over 3/4 full during the idle period.

About a month ago I ran it across town to an RV repair place for work on my
waste tank. On the way over, the Water in fuel light was lit. On the way back
two days later it was not lit.

I am now 1 week and 875 miles into a trip. After each engine start the light
varies between off and on, about 50% each time. On the times when it is off, it
comes on sometime later. In all cases but one it stays on to the end. In that
one case it went off after a hard braking, then came back about 25 miles later.

Today it started off, and was off for at least 160 miles before coming on.

The separate Water in filter indicator has never come on, and there've been no
problems with fuel flow.

Looking for experience with this. Have others had it? Did it go away after some
fuel was drained out? In other words, what is the liklihood that it really needs
attention?

Don Bradner
90 PT40 "Blue Thunder"
Posting today by satellite from Boise, Idaho, headed Southeast.