Laserfiche WebLink
i � <br /> For frostp;�oofing pump discharge pipe place an envelope <br /> of materiQi with air space 4round pipe for insu lation. Use <br /> a rock envelope only with r�netal pipe. Pump discharge pipe <br /> can be Iaid inside a larger pipe. Keep discharge pipe on <br /> a grade back to pump. Allow no low spots in discharge <br /> line. Polystyrene should be at least two feet wide. <br /> . <br /> . <br /> 6ackfi 01 . <br /> Expanded Polystyrene <br /> . . . . . . . . .:;,.: <br /> :�� . . .��: .��.. . . . :��: <br /> � � Tamped Backfi I I ���� . � ��� <br /> �• :c;. :�t, .�.,' . <br /> Fi I I Space With Foam Insulation Purr�p <br /> for Added Protection Discharge Pipe <br /> 1Nherever possible maintain a grass cover over top of <br /> trench and allow snow to remain in place. When snow <br /> cover is I ight, place 6 marsh hay Iayer on ground above � <br /> p � p�• <br />