So as you can see from the picture, my water softener drains into my sump pump pit, and has for the past 5 years. I have a main sump pump the outflow goes underground to a ditch about 30' away. The second battery powered one just dumps on the lawn. So is there a reason I couldn't tap into the main sump pump line that goes horizontal down to the ditch, and connect a wye and attach the softener drain to the wye and let if go right to the ditch and not have to be pumped out? The softener uses about 120 gallons when it regenerates, and does it every few days during the summer when we are there. The softener backwash should have enough pressure to flow down the line, and there's a check valve to prevent the water from coming back to the sump pump. I'm also thinking of getting a backwashing carbon filter, so that will be backwashing too. Trying to prevent my sump pump from having to do a lot of unnecessary work and end up failing when it need it most.