Weak flow from electric shower,

Thanks again....I will try what you suggest later....I also thought that while I do check the filter is it worthwhile totally removing the shower completely so just the water pipe is sticking out of the wall and connecting another pipe to it so as I can test the ltrs per minute straight out of the wall and not going through the shower at all....as I suppose the fault could be in the shower pipework from the mains to the entry to the shower...as I said previously I get approx 12lts per min from bath tap so should I expect maybe a better rate with my idea to bypass shower totally or if i don't get an improvement could it be a problem in pipe run from mains to shower ? Hope I've explained my idea properly....cheers
 
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You can do as you suggest ,but bear in mind the flow rate from an open ended pipe will never be the same as thru the shower ,it's hose ( much smaller diameter than supply pipe) and the shower head ,all of which restricts the flow. It will however prove the supply's ok ,or not !!!
 
And in the winter with a not so generous cold water temp ?

Ground temperatures surprisingly, do not vary more than a small number of degrees between winter and summer, hence water temperatures through pipes buried in the ground is likewise fairly consistent.
 
Whilst I do agree that underground water will stay at a reasonable consistent temp throughout the year, most of the UK mains cold water comes from exposed reservoirs who's temperature can vary a lot from winter to summer, anything up to a 10-15 Deg difference.

See the temp swings all the time when recording water temp/flow readings on boiler installs from summer to winter and hence why electric showers can see a large drop in flow during winter as the shower is turned down to maintain the desired temp.
 
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It won't modulate the 'current draw' that's fixed by the size of the heating elements at 41 amps (9.5 kW at 230V) so once switched on, the heat output from the elements stays constant.

To control the temperature, the water flow newer showers automatically regulate the water flow and keep it constant. But the control principle is still 'less water = hotter water', and 'more water = cooler water', in the same way that you manually adjusted the flow through your older shower.

Sorry to contradict you, but you are WRONG. My shower is able to modulate both the water flow AND current, to achieve the desired temperature. There is nothing easier to achieve than using a simple triac to control large current flow.
 
Thanks for that information. Very interesting. Could you post details of the make and model please. I'm guessing it's not the same model that the OP has.
 
Thanks for that information. Very interesting. Could you post details of the make and model please. I'm guessing it's not the same model that the OP has.

I posted that information in a reply to a similar subject about showers, in reply to a forum member months ago, but to be fair most of the better modern electric showers do now modulate water and input current to achieve a temperature which you set on a dial. The temperature dial rather than a flow control, is a pot, which sets an actual temperature you want, then the electronics measure the flow temperature and adjust flow of water and current to precisely produce your desired output temperature.
 
I posted that information in a reply to a similar subject about showers, in reply to a forum member months ago, but to be fair most of the better modern electric showers do now modulate water and input current to achieve a temperature which you set on a dial. The temperature dial rather than a flow control, is a pot, which sets an actual temperature you want, then the electronics measure the flow temperature and adjust flow of water and current to precisely produce your desired output temperature.
But the OP does not have a digital shower
 
But the OP does not have a digital shower

I didn't suggest he did. I was correcting Stem's assumption that newer showers only modulated the water flow, they can modulate both water and current or at least the better/newer ones do.
 
I was correcting Stem's assumption that newer showers only modulated the water flow
No @stem never at any time referred to newer showers, he was answering the OPs questions, you just jumped to a random post about digital showers, as you have chosen to jump in on the post , do you think a digital shower will help the OP with his problem ?
 
No @stem never at any time referred to newer showers, he was answering the OPs questions, you just jumped to a random post about digital showers, as you have chosen to jump in on the post , do you think a digital shower will help the OP with his problem ?

Stem said and I quote...
'To control the temperature, the water flow _newer showers_ automatically regulate the water flow and keep it constant.'

That does seem to mention 'newer showers'...
 
Stem said and I quote...
'To control the temperature, the water flow _newer showers_ automatically regulate the water flow and keep it constant.'

That does seem to mention 'newer showers'...
why do you constantly take posts and add irrelevant comments? everyone knows which shower the OP has and is asking advice on, again I will ask as you decided to jump in on a post will a digital shower help the OP in any way ?
 
why do you constantly take posts and add irrelevant comments? everyone knows which shower the OP has and is asking advice on, again I will ask as you decided to jump in on a post will a digital shower help the OP in any way ?

A wrong statement was made and corrected by me, where is the problem, why the terrific upset, why try to detract from that?

No one mentioned 'digital' showers, I have never heard of a digital shower. I have seen and long ago installed a shower with a rather pointless digital temperature display setting, but that hardly made it a digital shower. The better models of modern shower simply have a marked dial, which you set to produce water at your desired temperature, primarily using feedback to control a triac to control the current input and thus the output temperature alongside some water flow control as secondary control.
 
A wrong statement was made and corrected by me, where is the problem, why the terrific upset, why try to detract from that?

No one mentioned 'digital' showers, I have never heard of a digital shower. I have seen and long ago installed a shower with a rather pointless digital temperature display setting, but that hardly made it a digital shower. The better models of modern shower simply have a marked dial, which you set to produce water at your desired temperature, primarily using feedback to control a triac to control the current input and thus the output temperature alongside some water flow control as secondary control.
So yet again , would one of these magical showers help the OP out ?
 

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