Help, No pressure at all

After installing the new pump with new unlaoder valve I started it but no water is coming out.

I tried open outlet port there is no water at all. The water feed is ok and installation is same as the old one.

Might be a left hand pump

Thank you
I solved it, I had to prime water in outlet port

How did you prime the pump?

By feeding the outlet port by external water hose

Durrr