when i flush the toilet, it won't flush all the time correctly, and
sometimes the bowl will not fill up with water like it should. i checked the
tank, and the water seems totally fine there (the water level). what could
be the problem why it isn't flushing right? (i sometimes have to hold the
handle down long for it to flush right).

why isn't the bowl filling up with water all the time? is there something
trapped down the line?

thanks for any help