Hi, just a homeowner who can decorate but that's about it. Have read a few forums about the triton t80z 9.5kw cold feed only and have ordered a new one as 5 of us use the shower every day so recon the heating filament might be knackered. I live in a hard water area. cold water in bathroom taps and kitchen seem as normal with regard to pressure. the low pressure light is off but as soon as I turn shower on the low pressure light comes on and just cold water comes out...daughter then tells me it started sputtering hot and cold the night before when she used it (thanks for telling me lol ) so sorry for war and peace but my question is this, if it is low pressure feeding the shower unit then wouldn't the low pressure light be on all the time does anyone know please ? e.g low pressure light wouldn't just come on when powering on ? Thanks if anyone can help/knows and sorry if similar been posted ;-)