I have a leak in rear of bowl coming from underneath inside the bowl. The water trickles down continuously and leves a rusty mark which is difficult to remove. I have tried to tighten the red screw on top which does help but not stop leap entirely. What else can I do?

Can you help me re: the toilet issue I have?

Hi Kenny,
Does the leak come from the tank and runs down the back of the bowl or does the leak come out the back of the bowl at the floor level? If, as you describe, it trickles down the back the tank bolts need to be snugged up. (See inage). Do not tighten the tank down so it can't be moved. Leave about 1/4" of play when you rock it. If it's leaking from the base click on back and tell me about it.Good luck, Tom