05-08-2020, 12:53 PM
Take the pump off and check for suck and blow when the lever is operated.
These pumps usually work ok, so either, as Bob says, it isn't being operated by the lever, or something is holding a valve open.
Are you sure the diaphragm rod engaged in the rocker arm correctly, it can be a bit of a fiddle?
These pumps usually work ok, so either, as Bob says, it isn't being operated by the lever, or something is holding a valve open.
Are you sure the diaphragm rod engaged in the rocker arm correctly, it can be a bit of a fiddle?