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Question:

What is the sensing/operating temp.., of SMOKE & HEAT detectors?And also what is the working principle of the?

What is the sensing/operating temp.., of SMOKE HEAT detectors?And also what is the working principle of the detectors?

Answer:

First of all, anything is possible. We need to be realistic though as to just how much of the systems can be replaced at a reasonable cost. Contrary to what has been stated, it is absolutely possible to have lead pipe in a home including the service and waste lines. If your home is old enough it could have portions of the waste line that are lead and connect to cast iron mains. I can't honestly say though that I have seen a water supply system in a home that was lead past the meter. Pex as mentioned in the other replies is the best way to go from both a cost and ease of installation standpoint and if your home is a ranch style home with an open basement it will be easier to do all the piping in a new material than in a two story. I would never try to quote a job like this sight unseen or even try to tell you that it should cost no more than a certain amount. There are too many variables involved and we as Plumbers are doing you a disservice to tell you otherwise. As mentioned before get at least three quotes from reputable Plumbers in your area and don't be afraid to ask for references and ask lots of questions. Regards, Indy
Apply for unemployment until you find another one. or you can try to talk your manager out of letting you get your job back.

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