Quote Originally Posted by mas985 View Post
Keep in mind that you need 14 times the pipe diameter of straight pipe for the flow meter to remain accurate. Most pumps don't have that much pipe on the suction side. Also, on the suction side of the pump you have to deal with debris clogging the flow meter. I would recommend a pressure side install after the filter.
How would it effect the accuracy, would it read higher or lower? What would the effect be on 2" pipe if the flow meter was installed ~ 6" from a 90 or 45?