Good you took pictures [Smart thing to do] so just refer to them for the correct direction.
IE if the wide side was facing out don't install the wide side in as it reverses the pump motor. Or if wide side was then that way. This is wedge shaped part.
According to the image it appears it is wide side down.
IE if the wide side was facing out don't install the wide side in as it reverses the pump motor. Or if wide side was then that way. This is wedge shaped part.
According to the image it appears it is wide side down.