Whenever you hand feed fish you will get more muck from fish just because the fish are excreting more nitrogen and ammonia which does cloud up the water somewhat more depending on how much you feed them. I wouldn't personally worry about them polluting one side since the waste typically disperses throughout the pond especially since 1/4 acre is necessarily that large. You can however feed in different sides to try to get the fish more dispersed but its not mandatory that you do. The best advice I can give is limit the amount of food to limit the excess of fish waste. I'll let other people chime in since they may of had a similar problem.