Water pump..

[Paul Andrews]

Well, everything works but it's a bit of a disaster at the moment. Compared to our old power shower pump, the new "whole house" pump is really awfull - enough pressure to power a fire hose and enough noise to wake the dead. I don't have much room for manouever with the pump - space is tight. It's resting on the floor (rubber pads) of the upstairs airing cupboard and the floorboards are acting like a sounding board. I've lifted it onto a dual layer of carpet but that's hardly had any effect. there's very little room around the pump and I really can't squeeze much more under it with the current pipework. It's a Salamander 3Bar pump.

Guess we'll have to move house!

Paul

[Capitol]

Is it connected with flexibles? I have found that a ceramic plant tray under the pump say 8" x 12" x 1" with carpet underneath works rather well. The tray is so heavy, that it cannot vibrate easily and damps the noise. The tray also collects any stray drips from the pump, as the manufacturers reckon that some leakage is probable sometimes.

Regards Capitol

[Rob Morley]

Chop out the floorboards and stick in a paving slab instead?

[Paul Andrews]

Might be an idea..

[Paul Andrews]

That's something to consider. Seems having something heavy and insulated from the floorboards is the key. The pump is connected via flexible pipes. From the sellers website description: "FEATURES ; Quiet operation and smooth system performance" LOL

[Tractorboy]

Just done the same myself with the Salamander 3.3bar. Yes, its noisy. Well, noisier than I had hoped. It has been running for a few weeks and we don't notice it much now, but guests in the bedroom next to the airing cupboard certainly do! I have mounted it on the foam feet that are supplied, then onto a paving slab, then 3 layers of carpet underlay on the floorboards. It is also boxed in. I reckon most of the sound travels through the water in the pipes, although I can reduce some resonance by moving the pump slightly. Still at least the bath fills in 3 minutes now instead of 15!

Bob.

[Tractorboy]

Just done the same myself with the Salamander 3.3bar. Yes, its noisy. Well, noisier than I had hoped. It has been running for a few weeks and we don't notice it much now, but guests in the bedroom next to the airing cupboard certainly do! I have mounted it on the foam feet that are supplied, then onto a paving slab, then 3 layers of carpet underlay on the floorboards. It is also boxed in. I reckon most of the sound travels through the water in the pipes, although I can reduce some resonance by moving the pump slightly. Still at least the bath fills in 3 minutes now instead of 15!

Bob.

[The Natural Philosopher]

What you need is MASS. A great big roll of lead under it....

[The Natural Philosopher]

Yep. Lots of MASS is waht you want

[Rolyata]

Using something heavy to mount the pump on is a good idea for all the reasons already mentioned. But it won't be very quiet if there's still another way for the vibration to get transmitted.

You do mention that you're using flexible pipes. It may be too late to change anything, but flexible pipes work better at reducing noise transmission if they run in a gentle curving path and aren't pulled tight. Ideally you want to be able to move them a little once they are installed. That way, they won't do such a good job of transmitting the vibration straight into the pipework, which will do an excellent job of conveying that vibration all over your house.

I'd be inclined to use a few feet of plastic water pipe to connect between the flexible coupling and the copper that's used in the rest of the house.