You would do well to repair that sediment bowl if at all possible. As far as I know they are NLA anywhere.
Gasket can be made up easy with either an Oring or a piece of inner tube and a sharp scissors.
You can take the center stem out of the housing.
It is made up of about a gazillion little brass star shaped washers on a center post that unscrews. They get full of crud and block the flow.
Turn on the radio to the Redskins game and take the stem out and clean all the tiny washers in lacquor thinner or somesuch then put them all back on the stem. Take you most of the game to do it.
If you don't like the Redskins, don't have patience or have Lots of dough I have a NOS one of those sediment bowl/filters I would sell.