Wall thickness does not affect pipe or tubing size. 1/2" L copper has the same outer diameter as 1/2" K or M copper. The same applies to pipe schedules. As a result, a slight increase in pressure losses is realized due to a decrease in flowpath as wall thickness is increased. In other words, 1 foot of 1/2" L copper has slightly less volume than 1 foot of 1/2 M copper.
Don’t flush floss, tampons, or even so-called “flushable” wipes. They don’t break down like toilet paper does and can come back to haunt you later. “Toilets are more water-efficient now than they were 20 years ago, so there sometimes isn’t enough volume in the flush to force debris down,” says Marcin Wroblewski, president of ExpressRooter Plumbing in Toronto. “An object will get lodged in the trap and cause blockage when waste builds up days later.”
Jump up ^ "II. The Plumbers". The Atlantic. Retrieved 17 September 2013. In the early evening of June 17, 1971, Henry Kissinger held forth in the Oval Office, telling his President, and John Ehrlichman and Bob Haldeman, all about Daniel Ellsberg. Kissinger's comments were recorded, of course, on the hidden White House taping system, and four years later, a portion of that tape was listened to by the Watergate Special Prosecution Force, which was then investigating the internal White House police unit known as the Plumbers.