PPK float valve hole size?

[967]

Can anyone give me a rough idea what size hole I need in my float valve container, for a 10 plant grow, all fed off a single rez and manifold?

I kinda went overkill and could get away with 4 big ones, so now I have over 50 gallons or so of water in my system . Wondering if the 2mm hole will be able to keep up with watering every 2.5 hours? Looking at roughly 2.5 - 3lb of weed when it's all said and done I suspect
something tells me that hole is too small...

Cheers

 

[delta9nxs]

7/64" howdy buddy! what happens is that there is a strong draw while lights are on that might pull your water level down but it catches up when the lights go out.