Bryan in Iowa
Member
- Joined
- May 11, 2010
- Messages
- 10
My 310 is slow or weak on one side . Been like this for over 10 years. Pumps had been rebuilt at one time . Not sure if it was after that I noticed it or not . I checked drive motors in past and have replaced broken orings in them . It dose not make noise or get worse when hot or cold, just constantly little bit weaker than right side . So,,I have not checked pressure on test fittings on either pump yet . If one is lower , is there an adjustment on pump?