I have removed the cistern as it was leaking somewhere. It is a Shires make put in our new build 26 yrs ago. Got a new close coupling kit from Screwfix. Watched all the videos on how to do this, (always looks easy doesn't it?), Got the new syphon down pipe in. Dudley, put new bottom plastic nut on, tightening up found you need 3 hands, syphon pipe turns, metal plate turns as you tighten!. Got there eventually, placed cistern back in place, tightening the wing nuts is bending the plate, now have a gap on one side visible from the front. Cistern level as screw to wall lined up ok, only one side, hole the other side had no screw, fount they had drilled the hole in plaster board with water supply pipe to the loo behind it!! Question is should the plate bend like it has, the rusted up one I took off hadn't bent. Do I fill up and take a chance or should I look for a stronger plate?