Originally Posted by slapon
To answer your question, if you mean the flexible plastic sheet, it generally will not work well with a square receptacle so you lose the advantages of having a square receptacle to lay flat on the ground.
How about joining our conversation on the other forum?: http://www.lawnsite.com/showthread.php?t=386079
It's been really active over there, and I'm sure you'll find some other useful information regarding the product. Thanks, Eric
Close up pictures of the product in use have been added to the thread. Thanks, Eric