Our home has a toilet in the basement that is below grade (i.e. below street/sewer level). Accordingly, there is an "injector" that pushes any waste water from the toilet, sink, etc. up so that it can go down to the sewer. The problem is that the toilet has very little "suction." In other words, it will sometimes clog on nothing more than a tissue. What would cause the toilet to clog like this and what can I do about it? The toilet was newly installed prior to our purchase of the house, which has been fully rehapped. Additionally, the other day, I flushed the toilet and it again clogged. However, water continued to flow into the bowl, eventually spilling out onto the floor. I've never seen a clogged toilet do that. What's up with that problem? Thanks.