I am an owner/builder in CA. My house has an existing basement which we are enlarging and are going to put in a full bathroom. I have asked many plumbers in the area and none know anything about sanitary sump pits or the hardware that goes with them to pump sewage into the sewage system above. Could anyone suggest a top of the line sump pit, grinder pump, check valve, etc. so I can have a bathroom in my basement. I dont want a Little Giant. I would prefer a built in system like the kind that are so prevalent in the midwest.