You could put more than one filter on, but the first one will plug up first. I would just use a good filter and change it more often. Less of a headache.
ditto. Not only that but you're dealing with hard lines and would have to fab up all new hard lines. Your absolute best bet would be to pull and clean the tank if you're that worried about filters clogging. If you did that and replaced your filter with a good quality unit, preferably toyota, you'd be fine for a long time to come. I'd also consider treating your tank when you have it out for cleaning. The more thorough you are on preventetive maintenance the smoother things will work in the long run
