Maybe the testers aren't calibrated, but both showing an increase of 20 psi is at least consistent. What is the new head supposed to gain you? If the answer is 20 psi then you got what you were hoping for (other than an accurate reading with my crappy tester!!! LOL).
@GeneMcEntire4 ай бұрын
20 psi is what was expected... some accurate readings would be nice though..