What is exfiltration testing?

Exfiltration testing is done when ground water is not present. For exfiltration testing, the pipe is filled with water; a stand pipe (or manhole) is used to measure leakage and main- tain head. Required test equipment: Bulkheads/plugs, plumbs, hoses, weir, water, stop watch.

What is mandrel testing?

Mandrel testing also known as deflection testing is used to determine that the ovality of flexible sewer pipe meets design specification. This testing is critical to the long-term performance of PVC sewer lines being installed today. The next inspection is with a mandrel.

How do you do a sewer pressure test?

How is a sewer pressure test typically performed?

The test section is from the building cleanout to the property line cleanout.
An air test is performed by plugging each end of the lateral and applying 3.5 psi to the section under test.

What is gravity test in plumbing?

Gravity sewer tests shall consist of plugging the end of the building sewer at the point of connection with the public sewer, filling the building sewer with water, testing with not less than a 10-foot (3048 mm) head of water and maintaining such pressure for 15 minutes.

What does xfill mean?

1. ( Military) (tr) military to remove or withdraw (an intelligence agent, soldier, etc) surreptitiously from an enemy-held area. Sometimes shortened to: exfil. 2. ( Communications & Information) (tr; sometimes passive) to remove (data) from a computer, network, etc surreptitiously and without permission or unlawfully.

What is infiltration and exfiltration in sewer pipe?

In general, this could be attributed to exfiltration (i.e. leaking-out) and infiltration (i.e. leaking-in) through the underground sewer network. Moreover, significant infiltration is potentially expected in areas characterized by high groundwater tables.

What is pipe mandrel?

A mandrel most often refers to tooling put inside a pipe or tube to help it keep its shape during the bending process. Mandrels can have additional ball-shaped steel to allow the mandrel to remain inside even the curved section of the bend during the bending process.

What does it mean to mandrel pipe?

A mandrel test is the inspection inside underground pipes and sewer conduits. This happens generally after new construction or maintenance. This test is issued by the cities or states to test the public sewer lines. This test will show whether or not the pipe has bent under stress and pressure of the soil above.