| http://www.w3.org/ns/prov#value | - in the original days of 1.6gpf/ 1990, the toilets would not flush and toilets plugged easily. now the toilets are down to 1.28gpf. a properly installed line is slick and waste will not stick immediately. but an older line such as cast is no longer smooth and slick. waste and paper will dry out and will start to stick and collect. biggest problem i run across is on lines that are separated from the
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