Backfill Instructions

ALL INSTALLATIONS MUST COMPLY WITH ALL APPLICABLE ELECTRICAL AND PLUMBING CODES, INCLUDING BUT NOT LIMITED TO, THE NATIONAL ELECTRIC CODE, LOCAL, REGIONAL, AND/OR STATE PLUMBING CODES, ETC.

 

1) INSPECT BASIN ASSEMBLY – IF THE BASIN OR ANY SUPPLIED COMPONENTS ARE MISSING OR WERE DAMAGED DURING SHIPPING, CONTACT AK INDUSTRIES.

2) UNLOAD BASIN – USING A CRANE OR OTHER SUITABLE LIFTING EQUIPMENT, LIFT THE BASIN IN THE HORIZONTAL POSITION FROM THE TRANSPORT VEHICLE. USE ALL ACCESSIBLE LIFTING LUGS AND A CHOKE STRAP IF NECESSARY.

DO NOT DROP BASIN FROM ANY HEIGHT. DAMAGE FROM IMPACTS WILL NOT BE WARRANTIED.

3) EXCAVATE HOLE – EXCAVATE A HOLE LARGE ENOUGH TO ACCOMMODATE BASIN, PLUMBING, BACKFILL, AND WORKSPACE. SHORE WALLS AS NECESSARY.

4) INSTALL BEDDING MATERIAL – PREPARE THE BOTTOM OF THE EXCAVATION BY INSTALLING A MINIMUM OF 6 INCHES OF BEDDING MATERIAL OR CONCRETE PAD.

5) SET BASIN – STAND BASIN VERTICALLY USING ALL LIFTING LUGS. LIFT AND PLACE BASIN INTO EXCAVATION, LEVELING ON THE BEDDING MATERIAL. SPREADER BARS MAY BE REQUIRED TO EVENLY DISTRIBUTE LIFTING WEIGHT.

6) IF REQUIRED, POUR CONCRETE BALLAST AROUND BASIN BASE – CONCRETE BALLAST SIZE AND INSTALLATION REQUIREMENTS SHOULD BE DETAILED IN SPECIFIC SITE PLANS.

7) FILL BASIN WITH WATER – BASIN NEEDS TO BE FULL OF WATER PRIOR TO BACKFILLING.

8) BACKFILL AND PLUMB – BACKFILL WITH #8 GRAVEL WITHIN 4 TO 6 INCHES OF THE BASIN WALL. INSTALL BACKFILL IN 12-INCH LIFTS, COMPACTING BETWEEN LIFTS.

 

CAUTION

IF BURIAL DEPTH IS GREATER THAN BASIN HEIGHT, CONSULT AK INDUSTRIES TO ENSURE NO ADDITIONAL REINFORCEMENTS ARE REQUIRED.

IN FREEZING CONDITIONS, ALL BACKFILL AND BEDDING MATERIAL MUST BE DRY AND FREE OF ICE.

IF ANY BACKFILL OTHER THAN THE APPROVED BACKFILL IS USED FOR INSTALLATION WITHOUT PRIOR WRITTEN APPROVAL, THE MANUFACTURER’S WARRANTY WILL BE VOIDED.

 

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