Shower-Pan Showdown To the Editor: Thank you for the recent article "Leakproof shower Pans," (JLC, 11/89). As the manufacturers of Chloralory – the original CPE shower pan liner – we want to offer the following comments. The article contains a great deal of good information in its comparison of plastic liners versus the more traditional metal and hot-mop pans. It does, however, contain some misinformation or misstatement of facts in its comparisons within the group of plastic liners, CPE and PVC. The article's author, Mr. Duncan, states the CPE has two principal disadvantages to PVC: price and workability. He suggests that because CPE is stiffer it is more difficult to work with. In fact, because CPE is stiffer, it folds more sharply