Hi
I have the same proble, searching through the internet i found a site called the shower doctor (theshowerdoctor.co.uk). Click on site then technical data then triton showers. Click on page two and about a quater of the way down the page you will see the question opal triton 10.5kw pouring water from the wrong place, click on the question and read. If this is the same problem you are having click the first link and you can order the part for about £11.50 including VAT and delivery. You may also need to change your shower hose and head as this may have caused the problem. Hope this helps, not sure if this will work as i have only just ordered myself.
Barrie, August 2008