Has anyone any experience/opinions of the thermostatic mixer showers sold by
Screwfix? They have a Pegler Mimo at £99 and an unbranded bar mixer at £59.
They seem much much cheaper than brands I have heard recommended
What about the ones sold by B&Q (I saw a Tapmate one in store for £79, also
gainsborough ones are quite cheap) and Wickes (Aqualiss), any good?
Any opinions would be much apppreciated.
I have the cheap bar mixers in both of my showers at home; they
performed well but recently the thermostats failed in both of them after
about 4 years; fortunately they were under a 5-year warranty so Sfix
replaced both (and the new ones work fine too).
Again unbranded; can't guarantee the manufacturer (and quality) is the
same as the old ones. They look very similar but are not identical.
Also I suspect the 5-year warranty doesn't apply to the new (ie current)
ones (odd, that!)
You don't have to disassemble them to descale them. Simply, fill them with a
50% solution of vinegar and water for 30 minutes.
|> They seem much much cheaper than brands I have heard recommended
| > (Hansgrohe,Mira,Aqualever)
| The cheap bar mixers are fine, provided you feed them with soft (or
| phosphate dosed) water. If you don't, they scale up in about a year or two
| and can't be disassembled for descaling.
Did you also descale your shower head? The scale in the holes is sometimes
imperceptible. Use a wire, such as a paper clip, which is a snug fit, to
clean these holes.
|> You don't have to disassemble them to descale them. Simply, fill them
| > 50% solution of vinegar and water for 30 minutes.
| I that, and it failed. I suppose the issue might not have been scale,
| although I suspect it was.
Some of those fancy shower heads actually impede the flow on gravity fed
|> Did you also descale your shower head? The scale in the holes is
| > imperceptible. Use a wire, such as a paper clip, which is a snug fit, to
| > clean these holes.
| The shower head was clean, helped by a pin-clean system that reams out all
| the holes automatically. A very worthwhile upgrade to the cheap head that
| came with the mixer.
Yes, which is why I would not consider a gravity fed shower in a million
years. They're a complete waste of time, unless you can put the tank at
least 10m (and preferably a lot more) above the shower head.
That is not so, my tank is exactly 1 metre above the gravity fed shower head
and works brilliantly. You can buy shower mixer valves which are designed to
work on a head of .5 of a metre.
|> Some of those fancy shower heads actually impede the flow on gravity fed
| > showers.
| Yes, which is why I would not consider a gravity fed shower in a million
| years. They're a complete waste of time, unless you can put the tank at
| least 10m (and preferably a lot more) above the shower head.
It depends on what you expect from the shower. If you like the "soft water"
type head setting, then low pressure is fine and can even provide good flow
rates with careful design of the hot water system.
However, if you like the lowish flow, but high speed blast type settings, or
the pulsed massage, then it is simply physically impossible to provide this
without increased pressure. To get the required droplet velocity, through
the small holes does require a push. The push requires pressure, at least 1
If you are after something similar then it is worth looking in Makro.
They sometimes have the "Artisan" from Bristan as a complete kit with
mixer bar, shower head and mounting rail etc for about 58 all in.
The unbranded mixer in Screwfix looks like one bought ( for £90! ) from
It works fine, but a word of warning. Due to the cranked pipe adapters
with it, it was necessary for me to channel out the bricks in my wall to
have the supply
pipes set sufficiently far back so as to be able to mount the mixer flush
with the wall.
I see for a little extra Screwfix supplies standoff thingies for this
shower, so that you can
mount it projecting out of the wall slightly so as to avoid the need to
recess your supply
pipes back into the wall bricks. If you buy the bar mixer be sure to get the
it and save yourself a world of annoyance and work...
Well I thought everybody discarded the cranked adapters.....
If you have to increase from 1/2" to 3/4" and are short of space behind
suggest adapting perpendicular to the shower. More seriously if maintenance
access behind is diffficult which it is likely to be I recommend having no
inaccessible screwed connetions ie ditch the adapters.
The one I fitted came with chromed conical sections that fitted over the
cranked adaptors. So you mounted the 1/2" BSP threaded socket flush with
the finished surface, and then installed the cranked adaptors and
covers. That way there were no connections buried in the wall (other
than normal pipework ones).
Bear in mind that the further you have it projecting from the wall, the
less strength it will have it someone uses it as a handle etc. Buried
into the wall a bit, you can arrange for better support to the unit.
Also, I noticed that the chrome standoff units were expensive enough to
make the overall unit purchase not quite so cheap !
However, the cranked adapters can certainly be more trouble that they
are worth !
Yes, I found the adapters a real pain, and a another poster commented, it is
bad practise to have them inaccessible ( mine are behind tiles ! ) as they
be prone to move when you tighten the mixer bar onto them - you have no way
knowing whether their seals are still watertight since they are behind the
Perhaps I should not have used them, but my waterpipes for the shower were
1/2" not 3/4", so wouldn't fit directly into the bar mixer, and they were
the wrong distance apart. The cranked adapters allowed me to use the
but as I found out, spawned the additional problems of leaving the bar mixer
too far off the
wall, and with inaccessible joints ( I used liquid PTFE on them in the end,
as they were
prone to leaking ). I reckon I'd have been better off as suggested,
discarding the adapters
and somehow soldering 3/4" pipe onto the 1/2" pipe and spacing them out
easy as they pipes were behind a tiled surface which I had no spare tiles
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