Firemen place large clamps (the only one's Ive seen are yellow) that go at a 90 degree angle to the hose. I'd like to know what they are called, and what is their specific purpose?
Industrial and commercial fire extinguishers are designed to be recharged, and there are service companies who do that for a fee. In many instances, I think the service is to provide charged extinguishers, and that simply come around periodically and replaced extinguishers with freshly charged units. Some residential extinguishers are also rechargeable, while others are not. But I suspect the economics of residential extinguishers is different from that of commercial and industrial extinguishers, and it may be less expensive to simply replace questionable units.
it is NOT magnetism that sets off the alarms, it is a tuned circuit. The alarm system is an untuned RF field. When an RF field is not tuned, it does not draw current, that is, current does not flow, it sits there, idle. When a tuned circuit passes thru the untuned field, the field resonates, and draws current and sounds the alarm. You have something that is causing the circuit to resonate. A way you have wrapped the wiring, a combination of pieces of hardware I have a security access card that sets them off. I have fun messing with some more obnoxious businesses.
I've heard that a CD disc can set off the store alarms. I haven't had it happen to me but I was at the door when the alarm went off and the clerk asked the person who was exiting if they had a CD in their purse, not a stolen one just a CD, so they must have had it happen before. You can also empty your purse and check very thourghly to see if there's a sensor inside. Even feel the fabric to see in one was sewn in. If you find one you can remove it and perhaps stop the problem.
