Why don't you sump your tanks? It's not just water you should be
concerned about. How do you know you're buying clean fuel? I doubt
your FBO would vouch for the cleanliness of the fuel they're selling.

Dave
M35



Newps wrote:



Peter R. wrote:
On 3/21/2007 11:10:10 PM, Newps wrote:
The new tanks now a days are very flexible.

Just for my future reference, what are the signs that a bladder needs
replacing? Rubber chunks in the fuel sampler cup? Fuel stains or an
obvious
leak under the wing? Something else?



I rarely sump my tanks, pretty much only after parking outside
overnight. Look for the blue stain on the underside of the wing
along the wing spar line. Check the fuel vent line thru the inspection
hole, the nipple for the vent line is what broke on my tank causing gas
to leak out every time the bladder was filled. I put up with that for
about 6 months before replacing the tank. Also check the gaskets for
the fuel filler and fuel senders. They can get loose and leak.