[Closed] Plumberintrackworld - noises

Hi,

I have got a number of noises coming from my central heating and water system and was hoping from some advice from the knowledgeable members of STW !

It's an 80's house that is being refurbished and an engineered wood floor is being put upstairs and downstairs, everywhere but the stairs. Once this is down it will make getting to the pipes under the upstairs floorboard a right pain.

So the first noise is expansion of the hot water pipes that go to the boiler. They can be pretty loud in the main bedroom, which is where they are.

They are not very well secured to the joists (bent nails) :

[img] [/img]

and pretty much lie across each other at points :

[img] [/img]

and are very close to a metal bar at another :

[img] [/img]

So would I be best off securing them down with some plastic clips screwed into the wood, keeping them off the wood, or would I be best wrapping the pipes in some felt like this stuff from Wickes that I have seen used (on the web)

http://www.wickes.co.uk/Wickes-Felt-Pipe-Sleeving-Pack-3/p/210456

My thought is that long term the plastic clips could become loose again with the pipes moving against them, and they would also be better at conducting noises into the wood than the felt would be.

The pipes also turn 90 degrees :

[img] [/img]

So I wondered if the first clips after the turn would see more strain.

My gut feeling is that a healthy wrapping in felt would be best.

In addition I also have a big 'water hammer' noise (sounds like Thor's hammer sometimes) when my new worcester boiler turns the central heating off.

The pipes have been powerflushed, but many of the radiators are off as the house is being refurbished.

Is this fixable without needing to look at those pipes under the floorboard - i.e. could I need to get at them later.

I understand that a water hammer can lead to pipe failure later on.

I have a plumber here next week and he can look at fixing the water hammer, but the builder (carpenter really) is gagging to start laying down the floor and I am worried about later access requirements.

He is also a bit dismissive of the severity of the noises, putting them down to 'normal' expansion noises, but they are a bit more severe and so I am having to get a bit forceful with him to hold him back. Hence looking at the pipes myself.

Any advice would be appreciated !