Flow rate for a good shower.

[dhutch]

I realise that on one level I might as well as 'how long is a peice of string' I wondered what peoples thoughts are on what flow rates a 'good shower' would or could be.

Maybe we should split that into
- The bare minimum you can get a decend shower out of, assuming there is a decent head of presure. (thinking powershowers, 'eco' shower heads, caravans and the like)
- A typical good mains pressure mixer shower run from a cylinder or combi (aka, your typical Mira/Aqualisa)
- And may less relivent, what a typical half decent gravity fed shower might us (1st floor, cold tank at the top of the attic above)

Open to the floor so to speak.....

Daniel

 

[Dan Robinson]

God knows for the first one - not my thing.

Q2 - most people are happyish with the 9 litres a 24kW combi can provide. 11 litres is a good shower - anything over that is luxurious and wasteful.

Q3 - look at flow rates of showers at 0.1 to 0.5 bar. Make sure any flow restrictors are removeable/optional.

Aqualisa are OK. Mira I have less experience of, but not had particularly bad experience at that.

 

[Agile]

.

Q2 - most people are happyish with the 9 litres a 24kW combi can provide. 11 litres is a good shower - anything over that is luxurious and wasteful.

So says someone who likes his own 22 litres per minute shower!

I make do with a 5 li/min electric shower powered by a 2 Bar mains pressure which although the flow rate is low is still a good pressure so a nice tingly feeling on the back.

 

[Dan Robinson]

Remember T - I am special.

And twice your size

I would rather smell than use an electric shower.

Another thread here mentioned a "raindance" shower. For electric showers, the dance is purely in order to get wet. Rinsing soap off is largely down to pot luck and careful body positioning.

 

[Agile]

I unhook the head and use it on my body!

 

[DP]

That is a bit naughty

Do the teeth not leave scratches?

 

[Malc]

Bit late but anyway. Just measured an aqualisa colt. Flow rate was 4.0l/min. I find this gives me an acceptable shower. I don't feel short of water. I dunno if this is because the head gives a wide coverage.

Pipe run to the shower is 8m all in 22mm (2.4m to floor, 4.5m under floor, 1.1m to shower control). Shower head is 0.64m to bottom of tank. Water level in tank is ~0.42m (actually to 1cm below the overflow as I didn't take the lid off).

Aqualisa Opto Thermo Gravity test result is 10.2 l/m at 1.53m head (a typical 1m head spec'ed to tank bottom + 0.53m of water level I reckon). Aqualisa say the colt should be similar (sourcing the Opto thermo is tricky, the colt is very similar, according to Aqualisa, say 8l/min?, cartridge is universal rather than a specific gravity as in opto). So I guess since I have quite a long pipe run and 2/3 the head then ~50% flow is to be expected. But I'm happy with the flow.

Update: I had a bit an airlock which eventually got bad enough to notice. Flow rate is now 4.6l/min after clearing the airlock.

 

[Charnwood]

Remember T - I am special.

And twice your size.

I am only 3" shorter (not detremental, so your missus says ) and I manage with my Triton T80 7.5kw.

I say manage, I will soon be getting around to fitting the Inta Cooltouch bar mixer. GET READY TO GET BUGGED! We counterbuoys (whoops, preparing for our imminent boating holiday) counterboys are not infallible.