plumming

I plan to install a bath - shower mixer tap. The cold and hot are the wrong way around, so i needed flexible hose to swap them. What i don't understand is how can i connect the flexible pipes to the 22mm end or the 15mm end to the receptive elbows shown in the below. As it currently has the...

I'm in the process of going to fit a shower mixer bath tap .I need to remove old bath taps. Recently had a gas service plumber in he said all I have to do ist turn of the cold feed to boiler and this will enable me to change the hot tap as there is no stop cock in upstair flat. cold wter has...