I bought a Perlick faucet a few months ago and did not have a faucet wrench to install it with and could not get it to seal up on the shank so I ordered a wrench and tried to install the faucet over the weekend and still can't get it to tighten up enough to seal? Are all shanks splined and sized the same or is the one I have some odd ball that is causing me trouble? Any one else have this problem? Thanks in advance.