G'day Mate,
I personally don't use a fuel filter in any of my planes, BUT, I do use a very efficient filter in my fuel can, in my flight box, so the fuel is filtered before it gets to the tank in the plane.
I have never had a problem, with dirt in my fuel tanks.
I find that filters are more trouble than they are worth, most of them can leak, & case tuning problems.
And lately I have noticed guys using filters on their muffler pressure lines, I find this practice ludicrous, in the extreme.
If bits of junk are coming out of the engine, & going back into the tank, then you have big problems inside your engine.
just my 2cents worth.