Quiet Whole house pump

[mutley racers]

Hi, I am looking at putting in a new system where I raise the cwsc in the loft, put the cylinder in there and use a whole house pump to pump 2 bathrooms but not the toilets. Would like it to be as quiet as possible. Any recommendations? Looking at a couple of big shower heads in this and a bath.

Cheers

 

[Harvest Fields]

None of them are actually that quiet in my opinion. Speak to stewart turner and see what they say mate.

 

[Welder]

The 'secret' of quietening pumps in a loft is to mount them as close to a solid wall as possible and then to mount on as large a slab of 'proper' paving slab as possible. That minimises rotational pump vibration.
Using proper silicone based flexible hoses will isolate pipe transmitted vibration.

 

[mutley racers]

What I am actually thinking is getting using a thermal store and putting in a 5 bar single pump and then splitting it for hot and cold. The only thing is, they only have a gas boiler. No wood burner or solar. Maybe they could be persuaded

 

[Welder]

5 bar? It'd have to be one hell of a coil & store to keep up with the potential flow rate.

 

[Harvest Fields]

@SalamanderPumps is it coincidence that I have just had an email from yourselves about how quiet your pumps are?

 

[ShaunCorbs]

Dab e sys box

 

[mutley racers]

So, Gledhill say there system is not designed to work off a pump so not sure it will work not being under constant mains pressure. I cannot really see why it would not. Anyone?

 

[ShaunCorbs]

it doesnt matter pressure it just pressure doesnt matter where its fed from

 

[mutley racers]

Dab e sys box

Like the look of the mini. Upto 70 litres a minute. Would be nice with the tank as well as then it is all drinkable water. Tank quite expensive though.

I see you recommend DAB slot Shaun. You installed much of their stuff

 

[ShaunCorbs]

Yep done a few of there kits and done around 5 pumps off grp ones

 

[Aire]

If your going down the twin pump route then the ct force will be your quietest option running at only 46db. To put that in perspective for you, a dishwasher will generate between 45 and 50db. The next quietest pump is the monsoon by Stuart Turner which runs at 51db.
If you want to switch them to a mains system then I'd go for a grundfos scala 2 and an unvented cylinder. Flow rates of up to 75 ltrs/min at only 46db noise rating and suitable for 8 working outlets at a time.

 

[Jim Goodenough]

Have you looked at Dutypoint Mutley Racers?
https://direct.dutypoint.com
Their Scubatank is a good product although not cheap.
Also Salamander have brought out a new product called EVE
EVE Shower and Whole House Pump
Cheers
Jim

 

[mutley racers]

Think I am going to go with the e system mini with a Gledhill thermal store.

Does anyone know a good place to get potable cold water storage tanks?

Cheers

 

[ShaunCorbs]

How big 500l ?

 

[mutley racers]

How big 500l ?

Yeah, but to be able to link 2 together

 

[ShaunCorbs]

Yeah, but to be able to link 2 together

so two stnd 50 gallons then?

city plumbing have some cheap ones problem with online is delivery cost

 

[mutley racers]

so two stnd 50 gallons then?

city plumbing have some cheap ones problem with online is delivery cost

Are they for potable water?

 

[ShaunCorbs]

Are they for potable water?

its a standard cold water tank with bylaw kit

 

[mutley racers]

its a standard cold water tank with bylaw kit

Not classed as potable those though

 

[ShaunCorbs]

Not classed as potable those though

they are with a lid and bylaw kit

 

[mutley racers]

they are with a lid and bylaw kit

Oh really hey. I thought they had to have bolt down lids etc. We live and learn.

 

[Welder]

it doesnt matter pressure it just pressure doesnt matter where its fed from

Unf not Shaun. If that were the case, then Mira showers would work off pumped supplies like Aqualisa do - but they most def DO NOT.
If they say no then they mean no.

 

[mutley racers]

Here is their reply...

Good afternoon Mr Edwards,


A thermal store is designed to work on mains pressure water. As such there are no manuals or guidance on how to fit one to a pumped supply.

If you can establish a continuous 3 bar supply when required to the plate heat exchanger then you should be able to get the cylinder to work.

However, you need to be aware that in the event the pressure or supply to the cylinder should drop or fail when hot water is being drawn off, you may be at risk of water starvation of implosion of the cylinder – depending how much the pressure drops and how suddenly.

 

[ShaunCorbs]

So in short they don’t know how to do it / haven’t had anyone ask