The phase of a plumbing project during which the plumber locates all supply and
waste connections from the building systems to public utilities and establishes where
these systems will enter or leave the building.
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Underground rough-in
, Field experience used in conjunction with classroom lessons in an apprenticeship
program. ATELS requires 144 hours of classroom instruction per year and 2,000 hours
of OJL per year.
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On-the-job learning (OJL)
A plastic material used in plumbing and sanitary systems that is soft and pliable when
heated and hard and rigid when cooled.
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Thermoplastic
A thermoplastic material frequently used in tubing for cold water systems and the first
type of plastic approved for use in plumbing.
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Polyvinyl Chloride (PVC)
Another term for finish.
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waste connections from the building systems to public utilities and establishes where
these systems will enter or leave the building.
Give this one a try later!
Underground rough-in
, Field experience used in conjunction with classroom lessons in an apprenticeship
program. ATELS requires 144 hours of classroom instruction per year and 2,000 hours
of OJL per year.
Give this one a try later!
On-the-job learning (OJL)
A plastic material used in plumbing and sanitary systems that is soft and pliable when
heated and hard and rigid when cooled.
Give this one a try later!
Thermoplastic
A thermoplastic material frequently used in tubing for cold water systems and the first
type of plastic approved for use in plumbing.
Give this one a try later!
Polyvinyl Chloride (PVC)
Another term for finish.
Give this one a try later!
