I'm looking for suggestions to deal with an extremely noisy water
pump. I've recently bought a top floor apartment and the water pump
is in an airing cupboard as is my cold water tank - it looks like the
builders of the apartment should have put the tank in the attic but
possibly the tank arrived too late and the attic hatch was finished at
that stage. Every time I turn on a tap etc the pump is needed - without
the pump turned on the water pressure is a trickle. The manufacturer of
the pump is Stuart Turner Ltd, the model is ST55 (I think) and most
likely this was put in by the builders about 8 years ago and is
probably a cheap model. I don't think putting bubble wrap or anything
like that to insulate it will work as it's so noisy. If I replace the
pump do people think that it would be much quieter and what pump would
be best? The pump/water tank is beside a bedroom so the pump/water
inflow would have to be very quiet. Alternatively, I'll be getting an
attic stairs put in which means I'll be making my attic hatch larger
so I might be able to get the water tank moved to the attic - my
neighbour has his water tank in the attic and he has no need of a pump.
Which of these options seems best?

Thanks in advance.