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Why the pipe to be cut are placed as close to the vice as possible while hacksawaing? |
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Answer» The plumbing system SHALL be PROVIDED with a system of vent piping that will PERMIT the ADMISSION or emission of air so that the seal of any fixture trap shall not be subjected to a PNEUMATIC pressure differential of more than 1 inch of water column. Every trap and trapped fixture shall be vented. All fixtures discharging downstream from a water closet shall be individually vented except as provided in section 911. |
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