Perfect. Thanks. I only have one pump. When the suction pump that runs into the barrel gets to the full switch the pump still sucks but a couple valves switch and the pu.p then pump the 55 gallon barrel to the storage tank 225 feet away by the road where the 275 is. Then when sap triggers low level it goes back to full suction. I always keep 5/16 leak free and run around 26 to 27 on suction. During transfer it drip to around 12 on suction while it transfers and then right back up to 26/27. One of these will keep me from lugging batteries around and double connections.