New shower pump - some strange goings on now. What could it be?

[armyash]

Hi guys.

Got sent to fit a shower pump today, boss ordered it, I picked it up. Had a few little jobs to go to first and arrived to start at approx 12. Pump fitted in airing cupboard at base of cylinder.

Was a bit of a nightmare, loft full of junk, no light, barely any room to move.

The set up was cold to shower was coming directly from the tank with it's own single feed.

Hot was tee'd off before OV pipe and up in to loft and along to supply the shower.

I have reconfigured the new pipes for hot and cold to pump inlets and outlets.

First of all the pump came on when the shower was turned on, but when i turned the shower off, the cold was still running but with little pressure.

The hot and cold were piped up incorrectly in the loft to the shower (cold on left and hot on right). I switched these over to see if it made a difference. It made things worse, now the only water coming out the shower was hot, I could not adjust the temperature to get any cold and also the hot would still continuously run even with the pump and shower off. Also the cold inlet at the pump seemed to be heating up?????

Any ideas? I'll be going back tomorrow but it has really annoyed me, I double checked my pipework multiple times to make sure I havent piped up incorrectly and all appears to be ok but something is obviously wrong somewhere.

For what it's worth the shower is a unit with the big dial for on/off and a smaller temp dial in the center. The tenants said that they have always had trouble with getting a decent temperature.

I'm stumped!

Thanks

 

[PlumbersMate]

Got a pic of shower? Was there a pump there before?

 

[armyash]

I don't have a picture of the shower unfortunately I was so burnt out today i forgot to take a photo. I don't even know what make it is.

There wasn't a pump there today but apparently there was one before, I think in the loft. My boss reckons they might have taken one out but not put a new one in. The tenants have been there 2 years and said they have never had a pump so it must have been a while ago.

It makes sense there was a pump before but in the loft i'm guessing as the hot and colds to the shower in the loft space have obviously been cut in to as there are quite a few compression couplers where the pipes have been reattached.

 

[PlumbersMate]

I don't have a picture of the shower unfortunately I was so burnt out today i forgot to take a photo. I don't even know what make it is.

There wasn't a pump there today but apparently there was one before, I think in the loft. My boss reckons they might have taken one out but not put a new one in. The tenants have been there 2 years and said they have never had a pump so it must have been a while ago.

It makes sense there was a pump before but in the loft i'm guessing as the hot and colds to the shower in the loft space have obviously been cut in to as there are quite a few compression couplers where the pipes have been reattached.

long shot but don't look like this does it? Just what popped in my head from your description

 

[Irish]

few things armyash, the original plumbers coulda set the valve up to compensate for the fact the pipes were the wrong way around and the thermostatic cartridge could be knackered, also check the filters on the shower valve for debris had that one before myself

 

[armyash]

long shot but don't look like this does it? Just what popped in my head from your description

No not like that, it's quite an old shower by the looks of it, large dial/handle to turn on and off and smaller dial to change temp. Sorry I can't give a better description.

 

[armyash]

few things armyash, the original plumbers coulda set the valve up to compensate for the fact the pipes were the wrong way around and the thermostatic cartridge could be knackered, also check the filters on the shower valve for debris had that one before myself

Thanks, I did think maybe it was piped up that way for a reason but struggling for time to get the job done that I was sent to do then investigating problems after. not enough hours in the day

If it's me going back tomorrow I'll take the shower apart and see what's happening.

 

[Irish]

Grohe Shower Avensys Modern Concealed Thermostatic Valve 34224 this kind ?

 

[Irish]

Thanks, I did think maybe it was piped up that way for a reason but struggling for time to get the job done that I was sent to do then investigating problems after. not enough hours in the day

If it's me going back tomorrow I'll take the shower apart and see what's happening.

use a BIG hammer

 

[Billy Bob Bob]

a old mira 88?

 

[armyash]

This is the closest I can find. Just where that white disc is there's a temp dial.

 

[Billy Bob Bob]

View attachment 18604 This is the closest I can find. Just where that white disc is there's a temp dial.

sirus/heritage,shower doctor does spares pita to do though

 

[armyash]

Thanks, i'll see what happens tomorrow.

I think after everything, replacing the shower would have been the best bet.

 

[Irish]

[DLMURL="http://www.thefind.co.uk/hardware/info-round-outlet"]Round outlet - TheFind[/DLMURL]

 

[Irish]

Thanks, i'll see what happens tomorrow.

I think after everything, replacing the shower would have been the best bet.

http://www.colourbox.com/preview/45...r-for-industrial-work-vector-illustration.jpg do it do it do it

 

[armyash]

Thanks for all the replies guys.

I can update now, I like to leave an update with the solution just in case someone else has a similar issue and tries to search it, it might also act as a reminder to myself one day.

The non return valve on the hot side inside the shower unit had failed, we managed to free it up after taking the shower apart and all sorted. It was unfortunate that the problem occurred so late in the day that I didnt have time to sort it out. All's well that ends well.