Alan - What Jemsea said is what I was trying to describe!
When the lid is closed, and you flush 8-10 times, or so, do you get sufficient
water pulled into the bowl, from the suction?
It is very easy to check for the loose seal. Just squeeze the plastic ring inside the
seals to see if it moves in a bit. If it does, that was your problem!
Jemsea - Waht did you use to glue the ring back in?