Recent content by Ch_152

Management agency have said they're fine with installing the pump on the mains as long as it doesn't cause a noise nuisance to the adjacent flats. Which it shouldn't do based on its measured noise level, but may see if I can get some neoprene/rubber lined pipework hangers for the bits next do...

Sorry for the slow reply, busy week at work. Not sure I follow this. Are you suggesting the Grundfos pump would only give me 6.75 L/m? What about the Salamander? Also I'm not quite sure I follow the physics of it, if you wouldn't mind explaining to my layman brain...

Ah yeah, you're right. Yeah 3.5 L/m when it's on the coldest. That said, the pipework for the supply is a little convoluted around the cupboard upstairs with the CWS in, and I had thought about getting it re-done if I were to install the pump, which might improve ever so slightly.

I did actually measure this this morning before leaving. Got 3.5 L/m with the shower on eco and the head on the shower rail. So it would be borderline, and not much wiggle room…

Hi Madrab. Sorry if I hadn’t mentioned, but each flat has its own metered supply outside the building (I.e managed by TW). Obviously, at some point upstream, they all come from the same pipe, but I would assume this is somewhat analogous to a street of houses having their own metered...

Hmm, so actually when my shower is set to eco, it can be less than 3 L/m - so could be an issue for the salamander? (High mode is too hot in summer, when the ambient temp of the mains water is a bit warmer). Also, those tests were done with the shower head down in the tray, the flow rate with...

Ah I see, yeah the pressures measured at washing machine are a few posts up, repeated below for clarity. ~0.9 bar with nothing else open ~0.5 bar with kitchen tap open ~0.6/0.7 bar with upstairs shower running ~0.4 bar with shower running and kitchen tap open. Just measured the kitchen tap...

The only place I can measure the pressure is at the washing machine downstairs. I did the flow tests, as follows, with the shower on "High" setting, with temperature set to coldest (this is the maximum flow the shower can give): - Shower flow with kitchen tap off: 4.2 L/m (note that this is...

Minor update, bought a pressure gauge and measured at the washing machine (next to kitchen tap downstairs): ~0.9 bar with nothing else open ~0.5 bar with kitchen tap open ~0.6/0.7 bar with upstairs shower running ~0.4 bar with shower running and kitchen tap open. Noting that this was done at...

Interesting. Well that's all certainly better than what I have currently. I guess it comes down to whether the Homeboost providing other benefits (toilet, CWS refill, drinking water upstairs) is worth the additional cost of installing (although the unit itself about the same price as a T80SR).

Definitely won't need the pressure reducing valve given the pressure at that shower is less than 0.7 bar as it stands (but of course would install one anyway just in case!). Is there no issue with the mains pressure potentially fluctuating during use (which wouldn't happen when fed from a CWS)?

Hi mate. It was me that posted a thread on exactly that a couple months ago which you sent a few helpful replies in. I was going to do that, but unfortunately the requirements for the shower state that the bottom of the tank needs to be at least 8 cm above the inlet to the shower. Unfortunately...

Ahh yes I follow in relation to the dynamic pressure. I could do with getting some dynamic readings taken. Will buy a gauge and measure off the washing machine (which is by the kitchen tap). I gather the measurement I need to take is the pressure with all taps closed, and then open the kitchen...

Cheers for the reply. I went through a bunch of calls to TW and one chap did say that should be to the bottom floor of my property (i.e 2nd floor of the building), but when asking others (and the site engineer), they said it was just to where it connects into my building at ground floor. I...

Hello all. I live in a low-rise block of flats, each flat has it's own metered supply. It's known that water pressure is not great in general, and especially in the upper floors (I am on the 2nd/3rd (top) floors). I have checked another flat on the top floor and theirs appears around the same...