TM 10-3835-231-13NOTE1.REMOVE ENOUGH SOIL AT DRAIN FITTING LOCATION AND ON ROUTE OF TANK DRAIN HOSE TOAVOID DEFORMATION OF TANK BOTTOM. A 18" X 18" X 12" (.46 M X .46 M X .31 M) SUMP WILL BENECESSARY FOR DRAIN VALVE ACCESS.2.TANK PAD MUST BE FREE SMOOTH AND FREE OF ROCKS AND SHARP OBJECTS.Figure 4-5. Tank Pad (Sheet 2 of 2)4-11
