I had a system installed. 20 months later a pipe separated from a tee underground. I called to request a repair since the pipe did not appear to be glued properly. They were unwilling to repair under warranty since warranty was 12 months and I was unwilling to pay the repair cost since I had already dug the area up and it only needed a $2 coupling. After some negotiation they agreed to repair the system for free. I am satisfied.
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