Tinker's Construct Problems

[Osyrs]

I have been playing FTB Infinity Skyblocks for some weeks and i want to automate my smeltery to output the molten metal into a gear cast or a ingot cast or a casting basin just by a lever click.

I know how to make this setup for a single casting table, but i wanted to make it faster adding more casts. The problem is that when i have two casting basins the molten metal is divided equally and sometimes get stuck.

Does anyone know how can i make it never get stuck, making the molten metal be placed inside the casting only if the casting will be completely filled?

 

[Osyrs]

My recent solution was:
When i activate the lever the metal will be put inside the multiples casting tables, when their job is done i turn off the lever. If there is any metal stuck, it will be put inside a single casting table.

But actually there is still a chance of molten metal getting stuck in this single casting table, my solution was the next time the lever turn ON for a new request it will destroy what ever metal stuck is inside.
The lost will be less than a ingot, so i'm fine with it.

 

[ShneekeyTheLost]

Use a clock as a pulse former. As long as lever is not generating a signal, clock ticks and generates pulses to pour. Throw the lever, and it generates a signal that turns off the clock. No more pulses, no more pouring. Should finish the job it is currently on, if possible.

Alternately, check your tank and make sure you have enough material to make the given item before pulling the lever.