View Single Post
  #3   IP: 155.186.126.158
Old 08-11-2018, 10:15 AM
Dave Neptune Dave Neptune is offline
Afourian MVP, Professor Emeritus
 
Join Date: Jan 2007
Location: Grove, Oklahoma
Posts: 5,035
Thanks: 711
Thanked 1,289 Times in 839 Posts
Steve, to add to Bill's statement it could be a very minor air leak upstream too.

About the only thing that will keep a mechanical pump from pumping is lack of motion IE the plunger that actuates the pump is missing or worn out or the check valves are in backwards.

If you can actuate the bail and get no pumping it could be either scenario.

Dave Neptune
Reply With Quote
The Following User Says Thank You to Dave Neptune For This Useful Post:
Administrator (08-11-2018)