On Wednesday, August 6, 2014 10:30:03 AM UTC-4, wrote:
I have an LS8sT (from DG) which is exhibiting the same problem, leaking from the outer tank to the inner tank - its a later one (post Sn 8500), and my manual says to fill the outer tanks first.



Does anyone have any experience with these?

Hi,

I haven't looked at the TM library in a long time, but I have to believe it is the same problem. The tanks were not designed to cross-feed from inner to outer, and IIRC the only way for water to flow was through the venting system. Shouldn't be too hard to observe if you can put a wing partially filled with water on a saw horse and stick a cheap boroscope up against the point where the tubes run through the bulkhead/rib.

P3