Hi, I’ve just bought a new house and it looks like the shower pump is shot. The house had a major renovation around 12 years ago when all the plumbing was replaced. There is an old Stuart Turner Showermate 1.8 bar Twin feeding the two showers. When I turn on the showers the pump kicks in but the pressure is pretty poor. The pump is pretty old, it’s in a plastic case and looks basic. Should I replace this pump with the same size or should I go up to a 3 bar pump. Will something like this work https://www.screwfix.ie/p/stuart-turner-monsoon-standard-regenerative-twin-shower-pump-3-0bar/42415
The showermate is a cheap & cheerful pump. 10 or 12 years is a long time to get out of it. They are still sold if you want to replace like for like.
3Bar will give you more pressure & you will use more hot water. If using both showers at the same time then 3 bar is the way to go
Hijacking the thread with a similar question. We might have to replace a Grundfos 2 bar, brass pump.
It's 10 years old, but would have had a bit lower than average use. I thought we would get longer out of it. The options seem to be €500 for a 3 bar Grundfos brass
or €200 for a Grundfos plastic.
Is there any reason to spend €300 extra on the brass if we might only get 10 years out of it? We don't need the extra bar (3 bar) of pressure, 2 bar is fine
Would plastic be noisier than brass?
Brass body is well worth the extra. You might only get 3 or 4 years out of the plastic body one. Plastic body is much noisier too
Just because you have a Grundfos pump doesn't mean that you have to replace it with one. I'd be looking at a Stuart Turner or Salamander 3 bar brass body with a 5 year parts and labour warranty
Are they not a serviceable item without buying a new pump.
+ check your shower head as i bet its partially dirty / blocked giving a reduced flow.
My jets are smaller than when got it new and would drown you with that much water coming out.
Tried that already, took the hose off at the wall unit. The metal casing of the pump is very hot after running it for a bit, even with a cold feed. So it seems like the electricity is trying to do something inside the pump. Perhaps just not what I want it to do.
Just to close off on this. The plumber came around today and took the pump away for analysis. Was back after an hour saying the impellers had been stuck (now freed) and the capacitor was weak and needed replacing.
So was it fixed or only a report of what was wrong
The plumber came back to us with it fixed. The same problem as last year I suppose. Just that this year the impeller was probably slightly more stuck and/or the capacitor had a little less kick in it. So I wasn't able to get it going myself.
Are you living in a hard water area like lime build up ?
Doubt it, we're in Dublin. But the pump is idle for most of the summer.
Ah that might have a bearing as need to be used every now and again to keep it flowing.
Bit like switching on your gas heating to run it through a cycle to lessen the strain when needed.
going to hijack this recent thread with a similar problem. Aqualisa 3bar plastic pump, pressure has gone to sh1t on the hot side only, cold side is fine. It's only plumbed to 1 shower and 1 bath/shower (not any taps). It's been in our hot press for 10 years but it wasn't new going in so it's pretty old.
when this has happened in the past, I've turned the pump off at the mains and run the hot tap in the bath for 5 mins to clear out any air, and this has fixed it, but this time it is not fixing it.
I pulled the hot input off the pump and checked the filter which is clear. My next step is to reverse the sides to confirm that it's that side of the pump that's faulty. Anyone any other ideas? I assume if it's just one side that's faulty, then it's not the electrics, maybe a worn/damaged impeller?
Getting 10 years out of a 2nd hand plastic body pump is pretty good going. Not what you are asking but if it were me I'd replace it
you're right, but worth a try - if I can postpone spending €400 for a couple of years...
They are serviceable but they have a lifespan. It's usually not worth repairing any over the 10 year mark
right, I swapped the hot and cold sides which confirmed that the (original) hot side was not working properly.
feeling ambitious I then took the cover off that side to examine the impeller. Didn't see anything obvious wrong until I did the same to the working side. The impeller on the bad side was in 3 interconnecting pieces - whilst it didn't look obviously broken, the impeller on the other side was a single piece so that explains the rattling sounds etc. Taking the covers off was also a bad move as it's proven very tricky to put back to together and reinstall without leaks... ("what's that damp patch on the ceiling?" asks my son 😕)
Anyway - not repairable, I've ordered a new Salamander pump with brass fixings.
...to wrap this story up. New pump arrived but what I'd hoped would be a straight swap turned out to be a lesson in plumbing as the old pump had push-fit connectors and the new one screw-fit. The flexis supplied with the new pump didn't reach the pipes which had been cut for the longer flexis for the old pump.
After multiple trips to Woodies and the plumbing merchants and farting around with flexible extensions, several leaks, seized valves, buying tools I'll never use again etc, I eventually bought some pex pipe and load of push fittings, extended the pipework to meet the new flexis and all is now good. Pressure is restored, those in the house who actually have hair are happy they can wash and rinse it again, and as an added bonus the new pump is much quieter.