My migraines came back and the only thing I've changed in my daily routine is I started a new cholesterol-lowering drug. Can statin drugs be a problem for migraineurs?. We recently received this question from one of our clients who takes Tuliv Migraine Defense daily and has been migraine-free for quite some time.
SPECIFICATIONS. â¢ 1  Wrot Copper Fittings made from commercially pure copper mill products per ASTM Specifications B75 Alloy C12200. â¢ 2  Cast Copper Fittings made from Copper Alloy C84400 which consists of 81% copper, 7% lead, 3% tin, and 9% zinc per ASTM Specification B584.
Where 1/2-inch and 3/4-inch ratings for PEX (and copper) plumbing pipe comes from is from the I.D. of the pipe. The PEX pipes are made with an I.D. that matches the I.D. sizing of its copper-pipe counterpart.ay! Once the plumbing was exposed, we found that we had 3/4-inch PEX supply lines coming to the bathroom, which were split inside the shower wall to two sets of 1/2-inch PEX lines: one set going to the shower, the other set going to the tub and sinks.