Mira "Go" Shower

[roosi]

Just had this shower installed, 8.5 model.

It isn't as strong although there is more water comes out of the nozzle (the water doesn't project as far as the last one did), and we subsequently have to stand almost over the plughole to get right underneath the jet stream. Does anyone know of a way that this projection can be made stronger, there is a twist mechanism on the nozzle which changes the water strength to some degree but changing this still doesn't make the water stretch to even half the distance the old shower did (which was a 7.5) I think as it was 15 years old!
Any suggestions would be great on how I can change the pressure so the water travels further down towards the end of the bath?

[buildersmate]

Sorry but there is little you can do - changing the head for one with fewer or smaller nozzles may allow you to 'project' water further, if that's what you want.
The logic is this:
As you know, water is heated 'as required' with electric power showers. There is a fixed relationship between the electrical power going in (8.5kW) and the heat coming out (the product of the volume of water x the temperature rise given to the water by the heater).
This is why, when you turn the temperature down on these showers (for the same setting) the flow rate increases. What is happening is that the restrictor valve inside the unit is restricting the water less, meaning more comes out per minute, but at a lower temperature.
There is a certain illogicality about your previous situation before and now - because you say you have uprated the shower from 7.5kW to 8.5kW. Of course should mean you get a greater flow rate for the same temperature of water.
Which is why I say you might get more shower power if you change the nozzle.

[roosi]

Thanks Buildersmate - appreciate your help, may go this route if we can indeed fit another nozzle on it.

[wildwood]

Sorry if this sounds too simple but is the new one set to summer setting?

[roosi]

Summer setting? Had no idea this existed - where would I find this setting, and how can I change it?

[magicmerlin]

If you look at page 18 of manual you will see there is 3 power settings. High, eco and low. Rest should be obvious.