View faucetman886's Album. Vent pipes or waste stacks are needed for 2 reasons. the first is to pipe sewer gases up and out of the system to prevent the associated problems with trapped methane, not normally a problem with just a sink but very necessary with toilets.
Doctors often graduate medical school with well over $300,000 of student loan debt. Residency. It would cost a doctor $1,753 per month ($21,037 yearly) just to pay the interest on a $300,000 loan. Thatâs almost half of a doctors average net residency income of $50,000. So, for a doctor practicing internal medicine to forbear a $300,000 loan for three years during residency, then repay that loan for 20 years, it would result in an overall loan cost of $687,360. Thatâs $34,368 per year for 20 years.
(Some medical specialties require additional years of fellowship training in addition to the three to five years of residency training.) During residency training, residents are usually paid about $40,000 to $50,000 per year to help pay the bills. They are paid a minimal salary because medical residents are not fully licensed to practice medicine, and therefore residents do not independently bring in any revenue for a medical facility.