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.
Depending on specialty, a doctor can make as little as $80,000 a year, but will generally average $180,000 to $250,000 a year.Find out how very specialized doctors can make upwards of $400,000 a year with information from a family doctor in this free video on medical careers.Expert: Dr. David Cathcart.ind out how very specialized doctors can make upwards of $400,000 a year with information from a family doctor in this free video on medical careers.