Low pressure in shower

chriz1

Hi we recently moved into our a new house and We have a shower in our en suite and the pressure is very low, it almost dribbles out when on, it's an aqualisa thermostatic shower I don't believe it to be that old as the house is only 6 years old,
Just wondering if there could be a switch for some type of pump somewhere?
It's not a combi boiler as such it heats the water and stores in the tank I believe although all radiators have thermostatic valves and decent radiators so I believe this to be pretty modern!
Anyone have any ideas?

Lgas

If there is a shower pump it is usually in the airing cupboard, big thing on the floor with 4 flexible pipes going to it. That will be wired to a switch on the wall.

chriz1

No not that I can see all that's there is the hot water pump and then on one of the pipes a mid position actuator valve ? What's this for? and there is a switch in the airing cupboard but doesn't appear to do anything while on or off ??

Lgas

The pump is for the hot water and central heating, the mid position valve brings the boiler and pump on when required and diverts the hot water from the boiler either around the coil in the cylinder to heat the water, to the radiators, or both at the same time. The switch may be for an immersion, is there something at the top of the cylinder with a cable coming from it?

Lgas

Shower pumps are also sometimes in the loft, or even behind the shower in a cavity where you can't access it! (I have seen that). Otherwise I would get a plumber in to have a look.

plumb1_2

First you need to check if any filters are blocked in the shower valve its self. You need to turn the water off hot and cold, then dismantle the shower ( google you shower).

chriz1

Yes like a little temperature wheel strapped to the side of the tank I wonder what this switch is for then, as it's been off since we moved in and central heating and got water works as it's should
might have to have a look in the loft then

Lgas

Ah sorry, not that, the temperature wheel is the cylinder thermostat, that's for setting your hot water temperature (usually around 50-60 degrees). The immersion would be right on top of the cylinder, and circular.

WestonDave

We had an Aqualisa Quartz which ran off the hot water tank via a pump mounted in the loft. (The shower head riser tube went up to the ceiling and had the water pipe hidden inside it) - you'd be looking for a smallish grey box about the size of an icecream tub. Should be wired to a fused spur - not sure why anyone would bother to turn it off though! That might be your switch - fuse might have gone I guess.

chriz1

Hmm maybe thanks guys I will check all these out! Cheers

Lgas

Haha I never even thought that the switch might be for a hidden shower pump, d'oh! That would make sense