Supply line - underground tanks – Gasboy 70 Series User Manual
GASBOY Series 70 & 1820
MDE-4423B Series 70 and 1800 Consumer Elect Pumps Installation/Operation/Parts
15. DO NOT use gaskets on covers of explosion-proof type boxes. The sealing compound
found around wires at all junction box entrances is a requirement of the National Electrical
Code and should not be disturbed. Tighten junction box covers before replacing panels.
16. DO NOT use knock-out boxes or flexible conduit for installing this unit. All power and lighting
wires should be run in threaded, rigid, metal conduit. All threaded connections must be
drawn up tight with five (5) threads minimum engagement. Only one opening in the AC
junction box is provided. At completion of the installation, it is the installer's responsibility to
ensure that any unused openings are plugged.
SUPPLY LINE - UNDERGROUND TANKS
If you are using an underground tank, pitch the tank away from suction end. Horizontal runs of
suction line should slope down from the pump toward the tank. Do not exceed an equivalent lift of
12' for gasoline or 14' for diesel to the center line of the pumping unit, including friction resistance
in the suction pipe.
The end of the suction pipe must be at least three-inches from bottom of tank.
The tank or piping should not be located under traffic areas. Swing joints (two ells) will prevent
damage to piping due to frost heave or ground settlement.
Use non-hardening, gasoline-resistant pipe compound on male threads of all pipe joints for liquid