Precharged tanks

Mike K_6

I placed a precharged tank in a trailer system with an inground pump. It worked until I replaced the line. I replaced it do to an inground tank had failed, and didnt want to leave it in line.
The lights flicker from the starting and stopping of the pump. I was wondering if that contaminets may have gotten into the new tank and are causing these problems.
I changed the pressure switch and piping out at that time. The pressure switch was connected to a "flowomatic" and changed it out to a Tee. I would appreciate ideas to correct this situation, such as draining tank to check for sediment or possibly air in the tank.
Thanks in advance.
Michael