Last seen: Oct 1, 2025
I think so, but can't be sure. They were buried in the floor a long time ago (mid 80s). The point where the pipe enters the concrete definitely has vi...
I wonder what 'these' are? If they are flow meters, they don't come cheap, and four could easily set you back a grand. Also, on a PHE, but perhaps not...
I thought as much, and the answer is simple, as you say, publish the graph for each pump. The manual is huge anyway, a few extra graphs won't make it ...
@derek-m - thanks for the detailed explanation. I still think the plots are not ideal, in particular the lack of scales on the axes. We don't even kno...
It is on the return side, pushing water into the PHE, via the filter (black cylinder) you can see in the earlier photo. Will do the PHE measurement ...
Yes, and they are (I've just double checked).
That's very good of you (sending the email). I haven't removed the foam insulation because as you can see in the photo, it is tightly wedged in place....
Not yet, it is going to be a last resort as it will mean moving furniture and taking up carpets and floorboards. That makes sense, and is a less d...
I have been giving some thought to how to test for an invisible bypass and have come up with the following: close all rad lockshield valves except two...
@derek-m - the secondary water pump was rotated 180 to put it back in the correct orientation, the plumber had left it reversed (he thought it might i...
Yes, I find that analogy works for me too, though I add fuel burnt: Think mph is kW, whilst miles travelled and fuel burnt is kWh. I find it furth...
@derek-m - yes, we have to stick with physics (Newtonian, not quantum) and the real world observations and data, and not forget the Holmesian dictum t...
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@drei are taking measurements from the heat pump, or do...
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May I present the maths I referred to earlier when disc...
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