I have been trying to remove rust deposits in my metal tank. Tried the chain without much luck. Tried a bunch of clean nuts and bolts..not much luck. There doesn't seem to be any more rust coming free although there is still lots of rust deposit on the bottom and sides. Would it be O.K. to just leave the rust as it is and install an inline gas filter between the tank and the squeeze bulb? Would the inline filter do the trick or not. Thanks, Rick.