DH071 Typical Installation Instructions & Warranty …
10. DISCHARGE VALVE – 1-1/4" pipe thread. 11. DISCHARGE LINE – 1-1/4" Nominal pipe size. Supplied by others. 12. BEDDING MATERIAL – 6" minimum depth, round aggregate, (gravel). Supplied by others. 13. FINISHED GRADE – Grade line to be 1" to 4" below removable lid and slope away from the station. 15.
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