Triton T80 Easi-Fit Shower Cutting out with sink tap on ;-(

[advicewelcom]

Hiya,

Had a Triton T80 8.5Kw shower for the last two years in upstairs bathroom connected to the mains cold supply.

Its still working but cutting out and the water going cold when the upstairs bathroom sink tap is switched on.

Have just bought a new Triton T80 10.5kw shower and hoping this will fix the issue (have the thick wiring connection to fuse box).

But a part of me is wondering if the issue may be with the cold supply being affected in some way and putting a new or more powerful shower is not going to help?

In fact the new 10.5kw shower requires a 1.5bar of water pressure as opposed to 1.0bar for the 8.5kw.

Any pointers? Any way to diagnose if its water pressure or a shower problem?

I guess I could unplug the water connection to the shower box and see what kind of flow is coming out of the pipe? Not sure if there any way to measure if its 1.5br? Just not sure why the shower is working fine, but has started cutting out when the cold sink or bath tap is on and if I am going to make it worse by upgrading the shower? Its about 2.5 years old now and so out of warranty. There is a low pressure warning light on the shower which I have never seen come on.

Welcome any direction please.

 

[buzzlightyear]

And what size of fuse in or mcb?

 

[telectrix]

common fault. low water pressure. soon as someone flushes the bogtshowers go cold. our whole street is the same. only answer is to feed with pump, but that's not allowed on the mainwater supply. carch 22.

 

[Pretty Mouth]

common fault. low water pressure. soon as someone flushes the bogtshowers go cold. our whole street is the same. only answer is to feed with pump, but that's not allowed on the mainwater supply. carch 22.

I wonder if this could be as a result of the filter having become partially clogged?

 

[advicewelcom]

And what size of fuse in or mcb?

40A at the moment, but may need to upgrade to 45mA. Is it straightforward to do that? Its a hager MCB. Am hoping so.

 

[advicewelcom]

common fault. low water pressure. soon as someone flushes the bogtshowers go cold. our whole street is the same. only answer is to feed with pump, but that's not allowed on the mainwater supply. carch 22.

Thanks. Water pressure out of the shower is not good, but the I assume the real test would be to take the cold water supply out of shower and test it to see how fasts its coming out. Maybe this...

How to Test Water Pressure (Expert Guide) - Anchor Pumps - https://www.anchorpumps.com/blog/test-water-pressure-home/

Would have thought the low water pressure light would come on if the shower was cutting out due to lack of pressure.

Just wondering if the water authorities ever slow down the pressure if a tenant hasn't paid a water bill on time, I don't think this happens?

 

[advicewelcom]

I wonder if this could be as a result of the filter having become partially clogged?

Yeah could be, will check that thanks.

Else, the only other option I guess is to change the shower and see if that makes a difference, would rule things in or out. Its the same make of shower, so hopefully the exchange would be straightforward.

 

[buzzlightyear]

What rating is the cable so that we can
establish with shower. Cause if it a new shower it would be under garrantee.

 

[advicewelcom]

What rating is the cable so that we can
establish with shower. Cause if it a new shower it would be under garrantee.

Its over 2 years so no more guarantee.

Its the really thick cable - at least 10mm and maybe 16mm. When I called Triton they said 10mm min is needed for 10.5kw shower with a 45mA fuse - may have up upgrade the current 40mA fuse.

https://www.tritonshowers.co.uk/media/custom/upload/File-1366041415.pdf

Just don't want the same issues if the probs are with the water supply - checking I am not missing a trick here.

 

[brianmoooore]

You are correct in that the higher power shower will make things worse IF all other things are equal.
As mentioned in one of the post above, there should be a filter i the inlet to the shower which may be a partly blocked, so this is the first thing to check.
If all is well there, then this is a plumbing problem, which can almost certainly be improved on, but not necessarily eliminated.
First thing to check is that the main stopcock to the property is turned fully on. It may have been turned partly off to control excessive flow from some taps. The problem taps should then be fitted with their own 'stopcock' (they already should be) which can be turned partly off.

 

[advicewelcom]

You are correct in that the higher power shower will make things worse IF all other things are equal.
As mentioned in one of the post above, there should be a filter i the inlet to the shower which may be a partly blocked, so this is the first thing to check.
If all is well there, then this is a plumbing problem, which can almost certainly be improved on, but not necessarily eliminated.
First thing to check is that the main stopcock to the property is turned fully on. It may have been turned partly off to control excessive flow from some taps. The problem taps should then be fitted with their own 'stopcock' (they already should be) which can be turned partly off.

Yes, good advice, this is on my radar. Pretty sure inlet its fully open, but will check, downstairs water flow from kitchen tap (near internal stopcock) looks pretty good, but not sure what 1.5 bar looks like and so may have to use the 1litre and timing trick to see (unless there is any other way to do it)?

If the water flow from copper pipe into shower looks good as well, then can only assume the shower or filter need sorting. If flow is good into shower, would prefer a 10.5kw shower as winter months are coming.

 

[brianmoooore]

You need to invest in a cheap 4 bar pressure gauge, and a few fittings to enable you to connect it to the shower supply pipe, and see how much the pressure drops at the shower when a tap is switched on.
If it's only the bathroom basin tap causing the problem, a cheap and simple solution would be to lock the bathroom door when using the shower.

 

[telectrix]

United Utilities tolsme it was the oldleadpipes cominginto the house were furred up and it was our problem. funny thing is...... our mains water comes in t]from the streetmain in copper. proper imperial copper 1/2"pipe, not the new fangled thin walled metric crap that bosts as soon as ot gets cold.

 

[Petej999]

Its over 2 years so no more guarantee.

Its the really thick cable - at least 10mm and maybe 16mm. When I called Triton they said 10mm min is needed for 10.5kw shower with a 45mA fuse - may have up upgrade the current 40mA fuse.

https://www.tritonshowers.co.uk/media/custom/upload/File-1366041415.pdf

Just don't want the same issues if the probs are with the water supply - checking I am not missing a trick here.

40mA???? You sure about that?

 

[LastManOnline]

Yes, good advice, this is on my radar. Pretty sure inlet its fully open, but will check, downstairs water flow from kitchen tap (near internal stopcock) looks pretty good, but not sure what 1.5 bar looks like and so may have to use the 1litre and timing trick to see (unless there is any other way to do it)?

If the water flow from copper pipe into shower looks good as well, then can only assume the shower or filter need sorting. If flow is good into shower, would prefer a 10.5kw shower as winter months are coming.

Is your bathroom upstairs or downstairs?