300 litre Cistern has 15mm pipe to supply power shower .

[Wargas]

1. Power showers are feed with only cold water from 300 l cistern with
15 mm plastic pipe .

2 and 3
Is no hot feed is six rooms and 3 x 300l cisterns that supply the rooms with cold water by using 15mm plastic pipe .

5.
Shower requires 8.5kW but is powered by 230W

6
I have check water flow and is below 8l/min 6.5-7l/min
Everything is feed by 15mm pipe straight from cold water cistern .
Is 4 elbows that is reducing tje pressure.
I'll use no elbows everything will be bend on pipe bender .

I hope that will help .

Regards
Mirek

 

[Wargas]

Cistern

I believe it says cistern, not hot water cylinder,

C

I believe it says cistern, not hot water cylinder,

Yes cistern

 

[stani]

Is that 230 volts

 

[ShaunCorbs]

It's not a power shower op it's an electric shower and can't be fed off tank as they require a min of 0.8 bar of pressure

 

[steadyon]

As ShaunCorbs has said, they are designed to be run off the mains. In theory they could be run from a cistern, provided this was about 10 metres (4 storeys) above the height of the shower head, but if the cistern runs dry there is a serious risk of scalding to anyone having a shower at the time.

Given the difficulty there has been in establishing what you are dealing with you might consider the dangers of continuing outweigh the value of the work.

 

[Wargas]

It's not a power shower op it's an electric shower and can't be fed off tank as they require a min of 0.8 bar of pressure

Yes you right it is electric shower

 

[stani]

Well all that effort, it's an 8.5kw shower run off cold water tank, minimum you need 0.7-1.0 bar pressure with minimum 8 litre/minute flow rate, unless you can provide the pressure they won't work.

 

[stani]

Possibly an accumulator, but there are others more commercially inclined who will give better advice.

 

[Wargas]

Thank you all .

I'll update all about the progress.

 

[Scott_1979]

There are electric showers with an integral pump built inside which are gravity fed and need only 8cm of head. I've installed these in b and b's due to mains being starved. Might be looking into and might be an easier fix for you. Noisy beggars though! The ones I've used are made by triton

 

[stani]

Scott are they not hot and cold fed

 

[Scott_1979]

It's a gravity fed electric shower it only requires a cold feed

 

[cr0ft]

I've also fitted a pumped electric shower before. The pump and 8.5KW heater are both inside the unit. Worked a treat in a similar situation but yes, very noisy indeed!

 

[deg]

Mira elite 2 is one example of a cistern fed electric shower. Noisey buggers indeed.