Hey fellows need help in designing a drainage system for a large flat lawn area , The customer is a fanatic on a flat lawn but forgot about drainage , the lawn was sodded Huge area but having problems with standing water ,I inherited this job from this customer , So i need help with it any ideas , i thought about yard drains but the area is very flat and the ground is topsoiled and soaking wet with mud i have other good ideas but thought you guys had better methods Thanks KMSEXC