One of the two toilets in my house does not flush well. It flushes ok if there is no solids in the bowl, but the water will rise very high in the bowl if solids and paper are in the bowl. I have hard water and belive that the holes up under the rim are clogged. It does not seem like it when you watch the water come out. Any solutions to this problem? I used a small hand mirror to look at the holes under the rim but they seem to be recessed and I can not see them. Help!