Posted by Chriscase [172.10.15.175] on Wednesday, November 20, 2013 at 11:52:27 :
In Reply to: can a donaldson valve cause a vacuum leak? posted by mannyc [96.224.210.179] on Wednesday, November 20, 2013 at 11:46:28 :
Easy enough to cap them off for a test. Take it apart and clean it while you are at it. But I doubt that is is your surging problem.