shower single lever tap has started to leak slowly from within the body ,all crimped pipe connections are fine. Question is that this tap is less than a year old and would it be wise to try and repair it or fit a household item ,the existing pipe work is 12 mm and I have briefly looked for a speedfit 12to15mm connector but I doubt if one exists. So my dilemma is to either make a reducer/increaser myself or repair existing shower valve , hastle either way me thinks. Before anyone mentions warranty this is an imported mohome. Any one had this problem ? Any suggestions welcome