Ok, on the vaccum leaks the filter losing very fast, found slight larger diameter o-ring and tested again-now holds steady. The tank wouldnt hold either, found the orange o-ring in lid very spongy and weak. Again found o-ring with same ID, but very slightly bigger OD. Retested tank will now hold 15 in-mg, and will only drop half a point in 20 secs. As for the lines, just goin to replace.