Unit I: Legends,
TESTING THE SYSTEM FOR LEAKS
Once the waste system rough-in is completed, test it for leaks. Repair any leaks found and retest the system. A water test and/or an air test can be used. Testing must be done before the walls are put up.
Mechanical plugs. To test with mechanical plugs, place the rubber spreader into the opening to be plugged. Expand the rubber spreader by turning the wing nut and/or ratchet in a clockwise direction.
Inflatable air plugs. To test with inflatable air plugs, place the inflatable plug into the opening to be plugged. Inflate the plug with the hand-operated air pump.
Performing a Water Test
A new system with oakum and lead joints must be filled with water at least 12 to 24 hours to allow the oakum in the joint to swell and form a water-tight seal. The system is then drained and tested. For all types of piping used in a waste system, use these steps to perform the test:
Performing an Air Test
Use the following steps:
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