i have a cistern at my home that recently pumped some dirty water into my house. i have cleaned all of my interior lines out but now when i turn my pump back on it goes up to 60 psi and kicks off, then drops psi back down till the pump kicks on and repeats a time or two. then the pump will kick back on a final time but only build psi of about 50 and never kick back off again. all of this happens in about a 3 minute time period