This question is for the PMK users. I use a 4 reel tank to develop 2 reels of film in PMK, (500ml of PMK per reel for a total of 1000ml of PMK). When I use the FT-4 do I need to use 1000ml to fill the tanl or would 500ml, half full, which covers both reels do the trick. Thanks for any help...Gene(posted 8230 days ago)