Company blew out my system...
Well, per tech guy they blow out at 110 PSI without a problem for X number of years. While no heads were blown out of the ground, I am still wondering since there were like two or three moments (for 3-5 seconds) of mainline being closed under that pressure while they switched from one program to another. My mainline is 1 1/4" poly rated at 160 PSI. Am I safe?