:( I Have A Bath/shower Mixer Unit Fitted On Bath,when I Turn Shower On That's Fine,when I Want To Run Bath The Control Lever Moves Back To Mid Position Slowley Leaving Water On Half Shower And Leaving Bath Flow Poor,I Have To Hold Lever On Bath Flow Side Until Bath Is Full,the Screw Holding The Lever To The Tap Body Seems To Work Itself Loose I Have Retightened This But It Does Not Seem To Work.its Only Been Fitted 2 Years Ago ,don't Know Weather To Change The Seating Or Can I Buy New Lever And Inner Valve Combined,I Would Be Grateful If Anyone Can Help.delboy