hi, last week my boiler pressure had dropped and was 0.6, I have an ecotec pro28...a friend topped it up for me which was tricky as the valve (screwdriver one) wouldn't close again...the pressure is now 2.6 - help! also since then my water upstairs (boiler is in cupboard in bathroom) is tasting and smelling rubbery!! this has been so for a few days and now it is the same downstairs...I have no idea what is going on any advice appreciated.

