I have just received my new Porcelanosa wc with concealed cistern. Problem is that the cistern will actually be slightly higher than my windowsill.
I need to cut 100mm from the down pipe (currently 300mm long) from the cistern to the wc to make it fit. Will this interfere with the operation?
When I saw the wc in the showroom it was obviously fitted to a much lower dummy concealer box.
Any advice appreciated.
Many thanks