Reduced flow with Monsoon U2.0 bar Twin

Inoyton

Hey there!


Just got keys from brand new apartment and found out that flow is.. questionable. Pump is Stuart Turner Monsoon U2.0 bar worth 500 Euro. Builder says 'it's normal for 2.0', however I checked how quick it fills 9 liters - 2+ minutes versus what I have in my old apartment with M330N (never serviced I guess) - 50 seconds. Yes M330N is noisy boy, but who cares when you can enjoy hot shower?


Anyway, it seems there are no adjustments possible with this pump. What's wrong? Piping size? Wrong flange?


Thank you for your help.

Sleeper12

Inoyton wrote:

Anyway, it seems there are no adjustments possible with this pump. What's wrong? Piping size? Wrong flange?

So many possibles and not enough information. What is the pump pumping? Shower only?

What type of shower? It's possible that there are restrictors inside the shower itself. The pipework could be at fault. Maybe post some photos maybe

Inoyton

Sleeper12 wrote: »

So many possibles and not enough information. What is the pump pumping? Shower only?

What type of shower? It's possible that there are restrictors inside the shower itself. The pipework could be at fault. Maybe post some photos maybe

What is the pump pumping? - Pumping 2 bathrooms and kitchen;
What type of shower? - Mixer shower, I guess, not really sure that I know other types except for Power one;
It's possible that there are restrictors inside the shower itself - both are different models and have same behavior, taps are not 'fast' as well;
Maybe post some photos maybe - First thing tomorrow;

Sleeper12

Personally I'd have thought a 3 bar more suited for what you are discribing.

Very difficult to give advice here. Water should be brought to the pump in 3/4 inch pipe with as few bends & elbows. Each elbow will reduce the pressure /flow. Pipes should be coming from the pump in 3/4 inch to as close as possible to the showers.

If you called a plumber he'd probably start with a great big bucket & see what the flow is like coming directly from a pump. Another option for a plumber is to hook up another 2 bar pump and see what the flow is like from that.

Inoyton

Sleeper12 wrote: »

Personally I'd have thought a 3 bar more suited for what you are discribing.

How can it be that in current apartment 1.5 Bar pump is doing GREAT with same amount of bathrooms and kitchen? I mean you can really use shower head as an extinguisher..


In new apartment water looks more like waterfall rather than a flow

xl500

If its brand new apartment can you not check one of the other apartments and see what theirs is like but a 2 Bar pump if you only have shower on should be very good flow could be Pump was not commissioned properly could be airlocked the Stuart Turner instructions show how to bleed pump

check other apartment and then tell builder its not acceptable did you not check it before taking keys did you do a snag list

Sleeper12

9 liters - 2+ minutes

This is what a pumped electric shower puts out, up to 4.5LPM. You should be expecting at least 9 litres per minute from your pump. Some shower heads restrict the flow to 9LPM. Many US states require this restriction by law. By definition a shower has to put out minimum 10 LPM for it to be classed as a power shower. Somethings definitely not right with the system as it's delivering less than half (or even a third) the flow you should be getting.


As above, ask your neighbors about theirs & compare

youtheman

Did you do the flow test with the shower head on or off?. First thing I would do is look for 'obvious' restrictions in the flow, for example a valve half open or a blocked shower head.