Run water in 11 pot set up?

[Steve]

How do know how much water to let run in a 11 pot set up? Steve

[Ron]

It only has to run long enough to wet your medium then drain and flood again about every 30 minutes or so.
It depends on the least amount of time your timer has on it so you may have to water for 30 minutes at a time but by know means do you need to water that long.