I've got a really strange blockage issue with my en-suite toilet so I'm hoping someone can advise what to do about it. When I bought this house, the toilet was being flushed by a "saniflow" so when it packed up, I decided to get the proper piping in place. Got all that sorted last month. Couple of days ago after flushing we could hear bubbling sounds from the toilet seat but since yesterday when we flush the toilet, its taking at least 5 minutes to take the water down to the normal level. What could possibly be the issue? Thanks