Recent content by Donsboig

In a flat (Victorian conversion), but the temperature fluctuations are constant and very quick (going hotter-colder-hotter over 5 seconds ish) so I don't think it's due to flushing loos or other taps being used

I'm just learning about all of this so not entirely sure! But from some googling I thought they were probably basic isolation valves that were set by the previous owners to a part-closed position. If fully open the shower pressure is a bit forceful... Photo shows one of the isolation (?) valves...

I'm not aware of any pressure reducing valves, I've had a good look and can't see any. Could it perhaps be an issue with turbulence inside the mixer tap? So that the hot and the cold are getting slugged in in uneven spurts? My main concern with the thermostatic mixer is that if the flows coming...

yeah, it does stay steady in that setup

The temperature fluctuation is too rapid and consistent for that I think. It fluctuates every few seconds, all the time. If I can't figure it out then thermostatic mixer is the backup solution, but some numpty tiled the bath in so it will be a bigger job than I would like to pay for!

Thank you. I didn't measure it through the showerhead, but the temperature fluctuation happens through the main tap as well so I don't think that's the issue. Also in the restricted setting I always had the hot lever fully open, so probably was getting more than 2.5 LPM (combi HW set to 50). I...

With the isolating/restricting valves as they were, I got: Cold: 4 litres per minute Hot: 6 litres per minute Then I opened them both fully and got: Cold: 16 litres per minute Hot: 12 litres per minute Both times I allowed the hot to run for a minute first so the boiler was in a steady...

Hi, yes that's right, the cold into the mixer comes from the mains too

Yeah I'd like to avoid that if possible due to the difficulty of accessing underneath the bath. And I'm not totally sure it would solve the problem?

Hi all, I recently moved house and the bath/shower mixer tap constantly fluctuates in temperature. The swings aren't huge but definitely noticeable. It's the same whether using the bath tap or combined shower head. The adjacent sink mixer doesn't have the same issue so I'm assuming it's...