Here are some useful hotlinks for things discussed on December 15, 2016 WebTogether Consumer Broadcast. For details on upcoming broadcasts click here.
Hot water tank maintenance
http://joneakes.com/jons-fixit-database/1353-Are-there-signs-that-my-hot-water-tank-is-about-to-go
Checking water quality in an old hot water tank
http://joneakes.com/jons-fixit-database/1672-The-basics-of-water-purification-and-limitations-of-water-filters
Cleaning under the rim of a toilet
http://joneakes.com/jons-fixit-database/1639-Tip-Clearing-the-flow-through-the-toilet-seat-rim
Kitchen exhaust and backdrafting
http://joneakes.com/jons-fixit-database/1922-OVERVIEW-Improper-exhaust-fans-can-pollute-your-home-could-even-kill-you
Hoyme Damper
http://joneakes.com/jons-fixit-database/1978-Does-your-contractor-know-about-the-furnace-room-combustion-air-damper