I have a weird situation... Today I flushed my toilet and found that it was not siphoning correctly and would slowly drain. I tried flushing it a couple of times, and the water in the bowl would rise dangerously high, then slowly drain. I decided to try my other two toilets. When I flushed them, both, the first time, they flushed like normal. However, I decided to flush them again, just to see, and found that they were doing the exact same thing as the first toilet. So now I have 3 toilets that don't want to siphone correctly. Any suggestions on what the problem might be on this?
Thanks