tried the boiler, all's well. oh dear indeed, my thoughts exactly, but isolated the underfloor and tested it, all ok. so i think i'll go down the seal it route as pappyon and see what happens.
much appreicated.
checked drain,no drips, dry as a bone. Checked all joints and rad's there all sound. i can't find any staining on joints either. theres nothing obvious to fix!
cheers
hi all
Had a worcester 28cdi fitted in the loft, with original 4 radiators on the upper floor and new underfloor on lower floors(3 bed detatched) over the last 6 months the pressure keeps dropping. is the boiler in the wrong place or do i need something extra, an expansion vessel has...