Originally Posted by mitchgo
get a site design egnineer in and figure it out all for you and I'll come back and install the sprinklers . see you in two months
Agreed; I had the good luck to have a designer that never let me down. Basically, with curtain drains, it was to go to hardpan and six inches deeper, he also added surface "D" boxes that fed into the drains. It gets more complicated from there depending on the slope.