Are cracks or nail pops showing up in your walls? Get easy tips to make them disappear. Do you have to rewash you dishes after your dishwasher does? Tom and Leslie help diagnose the problem. Find out how to fix a wobbly toilet from This Old House plumbing expert Richard Trethewey. Plus, get answers to your home improvement questions about installing radiant heating, energy efficient siding, venting a roof, fixing a drafty front door, working with a chimney sweep, insulating a new house, broken door seals, cracks in a tile floor and staining a front door.