As part of the on going saga of fitting the new en-suite I have added isolating valves to all the pipes. The only thing is that I notice that even when fully open the flow rate of the taps isn't what it was before there were any valves. This has led me to be concerned that my power shower will also be "downgraded" due to the smaller bore through the isolating valves. I am considering changing the valves on the shower supply pipes to gate valves (the ones with the hand wheel). Is this a good move or am I just talking bollox?
Al.