Shower water supply and Combi

[harryhaddock]

Recently upgraded to a combi boiler.
Old system supplied a mixer shower-Aqualisa 430.

The shower has to be turned to full to achieve temperature.
Would fitting a PRV in the cold water feed to the shower allow more accurate temperature control?

 

[muggles]

What was your old system?

 

[swbjackson]

An ex Aqualisa rep told me to fit a ballofix valve to the cold feed and restrict the flow with it when i enquired about replacing the cartridge in an Aqualisa shower for the combi one. Apparently the only difference is a flow restrictor in the cold.

 

[harryhaddock]

S plan fully pumped system.

I have a Ballofix in the cold feed to the shower.

 

[Terry lambert]

Recently upgraded to a combi boiler.
Old system supplied a mixer shower-Aqualisa 430.

The shower has to be turned to full to achieve temperature.
Would fitting a PRV in the cold water feed to the shower allow more accurate temperature control?

I think you mean NRV

Non return valve

 

[harryhaddock]

Slightly confused.

Would the flow or pressure on the cold water feed to the shower need to be regulated?

can anybody help on this one.

 

[harryhaddock]

...

 

[harryhaddock]

Recently upgraded to a combi boiler.
Old system supplied a mixer shower-Aqualisa 430.

The shower has to be turned to full to achieve temperature.
Would fitting a PRV in the cold water feed to the shower allow more accurate temperature control?

I think you mean NRV

Non return valve

Thanks for the reply.

Could anyone confirm which i require:

Ballofix in the cold water supply(flow),PRV(pressure reduction) or NRV(not sure why this is required?)

Thanks.

 

[simond]

You could place a valve in the cold water inlet as suggested earlier and use it to balance the flow rate to your satisfaction. A pressure reducing valve or non return valve isn't what is needed here.

If you DIYd it, the valve would cost less than a £5er.

The Aqualisa combi shower insert did indeed incorporate a restrictor in it, although I believe they have since changed again.