Only that full water buckets don't stack, and since the multiple expert bus will all try to output on the same tick, only one will make it cause the others will see the space as full. You need to find a way to keep the router filled as quick as possible.
Try this....
X = pipe
W = wood pipe
S = Redstone energy cell
R = router
M = ME interface
X X X
X S X
X W M
R
Set it up for the ME interface to stock six full water buckets. Set the energy cell to one mj. It will pull out buckets, keep the router full, and place extra buckets back into the network.[DOUBLEPOST=1367913095][/DOUBLEPOST]The router should be under the wood pipe, (on my phone and can't get the spacing right). Wood pie needs to be set to pull from the interface. Actually, it might work writhe the router under the stone pipe instead of the wood one. Or try a diamond pipe over the router an and place a bucket in the shot headed towards the router. That way it will try and insert, but if it is full, out will just bounce up and back towards the me