I am stumped. I just replaced a pump that I thought was faulty (it was very old anyway) in order to solve a problem of too little water making it to the pump.
Of course, I was wrong. It is not the pump, as the new pump now has the same issue.
PSI is normally at 13 without solar panels 8 feet up, and 20 or 21 with. Now the PSI jumps to 30 almost immediately after turning the pump on.
Snake from pump side found nothing, as did Drain a Blaster from both sides...