I've never been happy with the flush on our loo, 2-3 goes to clear the big wads of paper my wife leaves in there...... the syphon packed in yesterday so I called at B&Q on the way home last night and spotted a conversion kit comprising push button operated flap valve to replace syphon , and a float valve to replace the ball c*ck. The differance in flow is amazing, and it refills almost silently. If these flaps are so simple ( can even be replaced without removing the cistern again ) why the heck did we have syphons in the first place. It actually uses less water as it shuts ( unless you keep the button pressed ) when the cistern is about 3/4 empty but because the water drops straight out it is much more effective.
Hats off to Fluidmaster !
Pete Cross