I'm just looking for any possible fuel restriction leading up to my lift pump from the tank. Is is common for the pickup screen in my fuel tank to become clogged or just very dirty? My pre-heater screen was very dirty.

 

The tank screen is pretty much self cleaning by the fuel sloshing around but if your fuel is extremely dirty you might have to remove the tank and flush it out.
The tank screen is about the same mesh size as the prefilter.