by marrtin »
Sat Dec 22, 2007 12:55 am
You cannot use existing supplies. All mixer showers to function correctly and safely must have dedicated supplies.
A Surrey or ******* flange may be necessary when a pumped shower is fitted, but a close connection to the top of the cylinder is often sufficient. Try first, and if air is drawn in, fit a flange.
You will also almost certainly have to increase the size of your header tank to satisfy the increased requirement of water