Trevi blend A3086 mixer has been excellent since install but recently flow rate is poor. Gravity fed; header tank level ok, new shower head, no better. Same flow rate on fully hot or fully cold. Help & advice please!
Your mixer may require a service / descale there may be a bit of debris from the tank int loft. Is the loft tank to bylaw 30 standard (fully sealed) ?
Thanks Dave; will strip down mixer & check for scale build-up/debris. Loft tank not sealed but wrapped in bubble wrap so should be clean.
Hi Dave; turned out to be collapsed/perished inner tube in shower head pipe. Replaced pipe between mixer & shower head, fixed. Thanks for your time.