How many litrees per minute do I have ? and need ?

[eddiebooth]

Hi
I'm new to this site. Hoping someone can help!

I want to fit a deluge shower( maybe Mira atom with diverter) and would like to know how many litres per minute I need ?
I have a standard gravity feed system .5 bar between the cold tank and shower head.
The feed is through 22mm pipe until the last 10 foot/3 meters where it splits into 15mm to feed 2 shower rooms.

Do I have enough water ? to make it work properly and
How much water should I be getting from cold + hot pipe.

Hoping for a unanimuse answer Local plumbers merchants are divided.:cuss:

Regards Eddie

 

[SimonG]

Hard to tell without seeing, but from the sound of it you won't have enough water pressure, probably more like drizzle than drench. Will need a pump.

 

[PlumbBobBob]

i agree sounds like you will need a pump. are you sure you have .5 bar your cold water tank has to be 5m above the hot water cylinder for that.

 

[eddiebooth]

Thanks
How many litres per minute per minute do I need ? as maybe I could connect 22mm through to 1 shower room ?

 

[eddiebooth]

yes
I have large 3 storey house. cold tank definately 5 meters from shower head.

 

[armourer]

What does the shower manufacturer recommend? ("deluge" shower could mean anything)?

 

[SimonG]

Highly unlikely that it would work well enough on gravity even on 22, with a thermostatic valve it increases resistance as well. I've had to correct a few installations where people have had a 'builder' change their bathroom/shower room and gone from standard shower to thermostatic and can p faster. I'd definitely be looking at a stuart turner pump.

 

[eddiebooth]

Thanks
Like life its complex
As this is a large house converted to a B&B and I have 5 other bath/shower rooms. I can get enough for a normal shower in all rooms IF I use a oversized diameter shower hose and free flowing shower head. Thats why I thought in my naievity that a deluge shower would let more water through. Especially seeing this shower room is one of 2 on the ground floor and has more pressure than the rest
Howerver if a pumps needed a pumps needed it is now a case of How big a pump?
If this will improve flow rate everwhere so much the better.