Removed rain soft water softener: cut pvc above shut off valve,
Cut drain side pvc both same height added 2 elbows and nipple turned water on and continuously runs down drain side turned water off and no water at all in house, how do I fix so there is water in house and not running down drain side

When you removed the water softener you should have just capped off both ends, the water softener feed and the drain line that came from it.

Did your tank have a backwash pipe? If so, you may have connected the feed to that. Can you attach a diagram of the piping? Most just have a loop with a bypass valve.

Capped off water supply line to softener and still have no water in house l am really puzzled

Have 2 pvc pipes coming up through floor, don't know piping under floor. Cut pipes from softener added 2 elbows and nipple to loop them together, turned water on and have weak water pressure in house and water continuously running into septic tank. I don't want to hook softener back up but looks like I have no choice. Looping pipes together wouldn't that be the same as by-pass valve on softener? Please email me at [email protected]

Have 2 pvc pipes coming up through floor, don't know piping under floor. Cut pipes from softener added 2 elbows and nipple to loop them together, turned water on and have weak water pressure in house and water continuously running into septic tank. I don't want to hook softener back up but looks like l have no choice. Looping pipes together wouldn't that be the same as by-pass valve on softener?

Unless you know what pipes go where, you are just guessing. Hard for us to help without being able to see details. Search "Water softener piping hookup" for examples. I had one a long time ago, had 2 valves, supply to tank and bypass direct to house. What pipe is going to the septic?

I would go back and look at the softener. Should be inlet and outlet pretty obvious, with a bypass in a different area, and frequently not 3/4 inch pipe. That should tell you what you are dealing with.