39HARDI MEGA 230 / 350 CENTRIFUGAL OPERATORS MANUAL6.12 Agitation Bypass Valve Operation (Optional)The optional agitation bypass valve is fitted when it is desired to cut theby-pass liquid to the tank at low tank levels and achieve more completedrainage of the tank. The by-passed liquid is directed back to the suctionmanifold and therefore is recirculated back through the pump.This valve, when fitted, must have the handle positioned in eitherthe "Tank" position or the "Pump" position. There is no "Off"position indicated on this valve.6.13 Operation of the Tank Drain ValveWARNING: BEFORE USING THE TOP DRAIN VERIFY THAT DIS-POSAL OF WASTE IS DONE ACCORDING TO CHEMICAL LABELINSTRUCTIONS AND LOCAL REGULATIONS.The tank is drained through the suction manifold valves on the lower lefthand side of the tank frame.To drain the tank proceed as follows:1. Ensure that the handle on the valve under the tank is turned to ahorizontal position with the arrow on the handle facing up.(Fig. 26)2. Ensure that the handle on the suction manifold valve is placed in avertical position.Fig. 25
