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SylvanLMP.
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Bart Clark
is it necessary to place a gravel underlay, under abs piping? vs., i understand it is, with pvc, as pvc is flexible, and abs is rigid…will not bend, thus does not need the support.
thankyou
leslie -
Regardless of the type of piping materials a clean solid backfill and base are required.
Plastic more so then the better ferrous materials as plastic has very weak tensile strenth and is subject to crushing.
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