just had a worcester 28cdi installed. the boiler is downstairs, and the flow at the downstairs hot tap is ok. the problem is the upstairs hot taps, (run of about 3 foot from boiler), both the bath and basin tap are at a trickle. i have had a look under the bath, and it seems the out from the bolier, (at 15mm), goes into a 22mm under the floor.. could this be the cause of the problem? or am i expecting to much from the combi?
thanks
tony
thanks
tony