I am just worried do trailers catch on fire easily? also should I worry?
Excellent question! Lots of answers here and some good logic too! Let me first say, you are your friend are both right, to a certain extent. Once you use a fire extinguisher, you will always want to have it recharged after, no matter how much agent is left in the unit. WHY? The extinguisher may work again, depending on the type, but MOST will leak off once chemical has entered the valve. Dry chemical, foams, and halogenated agents are notorious for this. For example, the dry chemical gets on the clean o-rings after the unit is activated so they are not sealing the unit anymore and the nitrogen (the propellant) will now slowly leak off. It may only be a matter of hours or a few days before the pressure will be at zero. At that point the unit is unusable and your friend would surely be right. Foams and halogenated agents can have the same effect, but the leak will be slower. (Weeks instead of days or hours.) Most CO2 will actually hold a charge for some time, but since CO2 units don't have gauges, you have no way of knowing if there's still pressure or not. Now that you know that. Here's food for thought: If you had to extinguish a fire and you can't save the agent for future use, why not just use the whole unit to help insure the fire stays out!
Corrosion There are two types of copper corrosion: uniform and nonuniform. Both types are caused by certain characteristics of water chemistry, including low pH, high alkalinity, and the presence of sulfates or nitrates. Uniform corrosion is identified by the presence of a relatively uniform deposition of copper corrosion by-products across the inner surface of a pipe wall and is typically associated with elevated copper levels at our taps. Nonuniform corrosion, or pitting, is the isolated development of corrosion cells across the inner surface of a pipe wall. Although pitting corrosion is seldom associated with elevated levels of copper at our taps, excessive pitting corrosion can lead to “pinhole” leaks in the pipe, which could result in water damage and mold growth.
Once the pin has punctured the safety diaphragm, the c02 begins to leak out slowly. It will not be too long before all the pressure is gone-then it will not work.
It sounds like your talking about a CO2 extinguisher. 1- Yes - for a short time. 2- Dry chemical - best to have full pressure available. 3- Liquid invert - (mixed chemical) - No 4- Liquid Pump - Till your arm gets tired or the liquid is gone. Good Luck - But don't stretch it ! ! !
Very funny and apt! I don't think lobbying is inherently evil, in fact I think it is critical to a functioning government. However, cases of politicians getting caught receiving inappropriate gifts or outright bribes are way too common. Obviously not everyone is getting caught, so clearly corruption is rampant. Unfortunately, the recent supreme court ruling on campaign contributions did not help.
