
3. Guideline for each installation process
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6-5. Drainpipe Combination and Bonding
1) Apply PVC glue to the joint area and wait for one to two minutes before combining them.
6-6. Drainpipe Water Soaking Test
1) Pour the water through the uppermost drainpipe or an air vent to check if the water
flows smoothly. After that, for twenty-four hours, perform water soaking test to test
leakages. In this test, the amount of water injection should be same as the amount of
water discharge.
2) In the winter, use anti-freezing liquid instead of water.
3) If the water discharge is not smooth, recheck the tilt of the drainpipe.
Drain water soaking test
Check for leakages after 24 hours
Check for leakages after 24 hours.
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