I accidentally drilled into a water pipe in the wall of my garage which feeds the outside spigot (for lawn watering). Is there any way to fix it without replacing it?
I can't speak towards what is required in your neck of the woods, but in Ontario, Canada, detectors would be mandatory. Although building and electrical code are not retroactive, this would fall under fire code which is. Regardless of whether they are required, I'm surprised that the inspector didn't note anything. Checking them is a required standard of practice for every inspection association (both Canadian and American) that I've heard of, not to mention just following basic common sense. In fact, in the majority of homes I inspect, I don't even test the units. There is an automatic recommendation to throw out old ones, and install new ones whenever their age is unknown.
In order for a fire to burn, all four elements of the fire tetrahedron must be present: heat, fuel, oxygen and a sustaining chemical chain reaction. A fire blanket either completely surrounds a burning object or is placed over a burning object and sealed closely to a solid surface around the fire. Whether the blanket is placed on top, or surrounding it, the job of the blanket is to cut off the oxygen supply to the fire, and put it out.
