How does a stenner pump work?
Its good that you are making him perform his duties by going to school and playing tonight. As for getting the name of the person, tell them that tonight after the game you are going over to the friends out and telling them what happened. Give him one more chance to give you the name or you will go to who you think it is and get them in a lot of trouble. Once they confess take them to that friends house and have a sit down with the kids in the middle. Talk to the parents and together find a strong punishment. I thing grounding is about right. He won't be allowed to visit any one for 2 weeks. If he breaks it he gets something important (the number one thing he can't live with out) taken away and the two weeks will start again that day. Also during the two weeks wake him up early and have him do house work. I don't mean mop the floor I mean mow the lawn, help with the gardening, trim the tree you'd been meaning to get to. Really work him so at night he is to tired to do anything but sleep. And simply tell him that he is helping because he's there and he's there because he broke a very important rule.
A fire alarm pull station is an active fire protection device, usually wall-mounted, that, when activated, initiates an alarm on a fire alarm system. In its simplest form, the user activates the alarm by pulling the handle down, which completes a circuit and locks the handle in the activated position, sending an alarm to the fire alarm control panel. After operation, fire alarm pull stations must be restored to the ready position using a special tool or key in order to deactivate the alarm sequence and return the system to normal. Primitive manual stations requiring only a single action or hand motion to activate, can be subject to unwanted activation by jarring or accidental contact. Early strategies to cope with this problem included requiring the operator to break a pane of glass to release an internal spring operated mechanism. Manual pull stations that require two hand motions such as; lift up and pull down or push in and pull down have since replaced the break glass and single action models in many modern installations. In Europe, Australia, New Zealand, and Asia, pull stations are generally not used; instead a manual call point is used, which is usually referred to as an MCP within the fire protection industry, as a transmitter in Japan, or as a break glass by the UK public. They are used to allow building occupants to signal that a fire or other emergency exists within the building. They are usually connected to a central fire alarm panel which is in turn connected to an alarm system in the building, and often to a local fire brigade dispatcher as well. The first modern MCP arrived in Europe in 1972 and was developed by KAC.