What is the difference? I need to make costumes for a Greek play, and I thought of using a bed sheet draped over one shoulder, flowing down with a belt and sandals. It's like a toga. Is that ok? Or is it more like ancient Roman clothing?
A five-gallon bucket of white roof sealant will set you back about 75 bucks. A sunny afternoon and some careful rolling with a cheap roller and pan, and cutting in with a throwaway or chip brush, and the roof is fixed. Any one with rudimentary skills and following directions will succeed in getting a good result. The ceiling panel is basically a fiberboard that has warped with moisture to the point of looking like a large bubble. It should be replaced by some panel of equal thickness and painted to match the ceiling.
Nearly all batteries are considered dead when their charge is 80% of nominal charge. So for the typical 9V battery, 7.2 v is dead. That's not to say the smoke alarm will wait for the voltage to drop that low. Actually I have no idea what voltage the detector is designed to signal a failing battery. My guess (( I said GUESS )) would be 90% because that's the half life of the battery. So maybe (and I guess) 8.1 v is when it might start chirping. If you don't get the regular chirp at regular intervals then perhaps you have a lose battery or maybe the terminals may be a bit corroded. But when it comes to smoke detectors, I don't wait for signals of weak batteries; I enter every heating season with fresh new and fully charged 9V batteries. The protection is worth far more than the few cents you save by keeping a battery in circuit for maybe two years. It's not worth your life - that's for sure. Hope this helped. '')
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Low Battery alarm not predicated on dual detector with AA batteries. It is based on resistance and impedance-the values of which are proprietary.
Just change the battery to see if that's the problem. If you want to be sure if it is the battery before you get one, just switch batteries with one of the good detectors and see if that indicates a battery. It also might need cleaned, I had one do that from dust once.
