Power shower off cold water mains using a reducer

[Champus]

My plumber intends fitting a power shower but when turning the bath around established the cold water is running off the mains. He has told me that he can instal a reducer to the cold feed which will reduce the water pressure to .50.

The instructions with the shower state that the unit must not under any circumstances be connected to the mains!

My question therefore is

Is installing a reducer to the mains when using a power shower legal.

Is this a safe option.

Any help before the job is done would be much appreciated.

 

[Breesey]

I assume by power shower you mean one with an internal pump?

If this is the case it shouldn't be connected to the mains - with or without a pressure reducing valve (if this is what you mean by a 'reducer'?)

 

[bolshy]

It won't work. And your warranty will be void. And it won't comply with water regs. Stored water ONLY.

 

[Champus]

Guys, thanks for quick response and confirming my concerns and yes the shower to be used is a power shower with small integral pump. Plumber insisted that a reducer can bring the pressure down to 0.5.

 

[swbjackson]

Tell your plumber to have a read of the water regs, if he can read them past the rim of his stetson. There is also a good chance of the mains water blowing the power shower off the wall if the PRV fails.

have a look at Trevi Boost showers.