Posted 11/19/2012 20:08 (#2706428 - in reply to #2704665) Subject: Re: Plastic tile and Tree roots......copper sulfate?
west central Iowa
If you have an intake close by you could put copper sulphate in tile, but will take 3-5 years to get roots to flush out. We just dig up the bad spot and replace it. Any Willow trees anywhere close to tile will plug them in a hurry!