8/9/2011 1:08 PM
I have a very similar situation, and have had pretty good success with Duplex, Logix(ENP), Syringe(Harrells). Sometimes though the best medicine is holes. When the profile is saturated, I don't know that there is anything that will move very much water through clay. However, if your native soil is sandy, any type of penetrant should help.
Josh