Dual Mechanism Flush

A flush mechanism operated by a valve is fairly easy to fit, and can replace an existing flush control with either a handle or a button. These flushing arrangements vary between designs, so always read the manufacturer’s assembly instructions carefully.


If you do not feel confident to carry out this job, do not attempt it and call a professional plumbing service as mistakes could result in a flood.


Isolate the water supply and flush the toilet to empty the cistern before you start. Bankside Plumbers can fit dual flush systems in any home. Remove the cistern lid and the ball valve inside, then the handle and finally the existing flush arrangement. Remove the cistern. Make sure the cistern is clean by cleaning out any grime or dirt. Unscrew the wing nuts from under the panel and take out the existing filling valve. Place an old sheet down over the toilet for spillages etc. Attach the flush cable control to the ball float mechanism (by clipping) and connect it to the base of the cistern using the back-nut and grommet that came with the kit. Make an adjustment to the filter restrictor depending on whether the water supply is at mains pressure or comes from a cylinder. Insert the filter restrictor into the filling valves threaded tale, then connect the valve (filling) to the inlet pipe using the back nut and washer in the kit. Clicking the flush cable control to the pushbutton, secure the pushbutton using the back nut supplied. Put the cistern back in position and connect it to the toilet pan. Reconnect the tap connector that joins the water inlet pipe to the filling valve. South Bank Plumbers are qualified to work with WC systems. Restore the water supply, watching the cistern fill and make sure there are no leaks and the flush operates correctly.