Bob Harrison asked: >Was it WAXED Pierco? I've used only waxed. After seeing comments on this list about un-waxed plastic frames & foundation I was afraid of even trying it. I've used both waxed white Pierco frames and waxed Rite Cell sheets from Mann Lake. If I headed all of the aforementioned caveats I had no problems. I only had acceptance problems when there was a marginal flow. I bought some waxed black Dadant Plasticell at a conference recently, which I'll try next season. Happy Holidays! Take care, Lance Parr Network Specialist II Physical Plant Telecommunications Texas A&M University Mail Stop 1371 College Station, Texas 77843-1371 [log in to unmask] (979) 458-1746