TT2,
Are these the pictures you said we should look at?
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Get ball valve and the 2. 1 & 3/4” and one unions glue the pipes to the valve now the union to each end as seen in Picture. Tag it.
http://i2.tinypic.com/qoudk6.jpg
Get the other 3 unions and the 6 pcs of 2” long pipe ¾” and glue them into the union as in the picture. Tag it.
http://i2.tinypic.com/qouelz.jpg
Get clear plastic tubing and attach to pump along with ½ of the union as seen in photo. Tag it.
http://i2.tinypic.com/qougxy.jpg
http://i2.tinypic.com/qouh6x.jpg
You can use the ball valve to turn off the flow of water after the pump is off, making a small amount of water flow backword the the hose can be removed and taken to the top of the run and then open the ball valve to let it flow into the sewer line. And shown without the valve for regular use at campground. Tag it.
http://i2.tinypic.com/qoukj6.jpg
http://i2.tinypic.com/qoukv9.jpg
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If so Thank you very much. We do have a uphill grade at one relatives.
Thank you all for the information, Laura & Joe