Your last question about what you should ask different contractors (1) How much static pressure does class 200 pvc hold..................................................................................... why 200. If he gets this wrong ask him if he knows how to say..."Would you like fries with that?"
You first will need to dig up the the connection to the white pvc pipe. This will make the hole large enough that you can unscrew your "Can Rotor (RB MaxiPaw?)". The fitting is now just connected to the black poly pipe. I personally would add a fitting- a 1/2" elbow (M thread x F thread), which will give you a very manuverable swing joint. You will need to know the size thread your existing heads have, if 1/2", and your replacement rotors' threads are 3/4", just use a 1/2" x 3/4" thread by threa...
