Morning guys .I have a grant vortex combi 26e with hot water problems.I changed the TMV a month ago since then had H/W pressure problems so I descale heat exchanger for about two hours today is this long enough .?? Also once put it back together pressure on hot was better nut still fluctuations in hot water do you think I need a new TMV again .I know they have scale problems so fitted combi care to reduce problems .di u think I need new heat exchanger and TMV. ???
Also mixer valve in house is passing. by how much can this effect the hot water ???
Also mixer valve in house is passing. by how much can this effect the hot water ???
