This hour of At Home with Gary Sullivan covers a range of home improvement topics. Gary takes calls from listeners, offering advice on various projects. David asks about mold in his kitchen sink, and Gary recommends removing and replacing the caulk to prevent further issues. Mark wants to add a bathroom to his finished basement, and Gary suggests using an upflush toilet system to avoid cutting into the concrete. Harold discusses painting over drylock on his concrete block walls, and Gary advises using regular latex paint.