I have been trying all day to fit a grotherm 1000 mixer shower. I fear I may have bitten of more than I could chew (me being a bit hopeless at DIY) anyway the shower was fitted and looked great....until I turned the water on and water started leaking out of the mixer valve and down the wall. The shower came with no fixing brackets so I took the entire unit to my local bath and shower store who reassured me that all I would need is the 2 x vado shower elbows they sold me and I could screw the valve straight to them. Now although the shower fixes to the wall I fail to see how it could possibly be water tight, all that came with the elbows was a brass ring. The pipes are exposed, all I need is to be able to secure the valve to the wall without causing a flood. Any suggestions or should I box the thing back up and hope for a refund?