Damn Thermoquads.

Pisha wrote.....
" The way the TQ Accelerator pump works is like a bucket: It fills from the top and pumps out of a tube at the bottom. If your float levels are low or you are losing fuel overnight, the "spillway" is under the fuel level now and it will go dry with 1 shot or less."

Now THAT makes sense. Maybe something as simple as a float adjustment?