Inventors began experimenting with automatic sprinklers around 1860. These systems started out as pipes with holes drilled in them. When a fire occurred, the water was turned on to control the fire.
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I've never had to cut a sprinkler line: Pennsylvania homeowner questions water heater install
"The sprinkler pipes (orange) are basically blocking access to the tank." ...
The local adopted fire and building codes specify when sprinkler systems need to be installed. These codes do not specify the system design, type, or limitations. Most model codes send the user to ...
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