isolation valves

[Jupiter01]

Hi,

I'm not sure how well I will be able to explain this but here goes..
I have a set of 22mm copper pipes carrying hot and cold water and run under the floor boards of my first floor. All 3 of my bathrooms will then tee off these pipes for their water. I want to be able to isolate the water supply to any bathroom in case there was some maintenance to do but can't see how I can do this in a neat fashion. All my bath pipes will be concealed so I can't see where I should put this...

Has anyone else come up against this?

 

[Gas2Air]

Your plan is to conceal fittings and isolation valves? Why? Dependant on what system you have you can isolate without the need for extra work. Why make it harder?

 

[Jupiter01]

Hi,

All the pipes in my bathroom will be concealed. My point: I can't see where I could site the isolation valve in the bathroom. Therefore, where can this go?

This is a megaflow system.

 

[Gas2Air]

There is no need to isolate each pipe on a megaflow system.

 

[Jupiter01]

Sorry, I haven't explained myself. I want to have a mechanism to isolate water to each of my 3 bathrooms. For example, if I am carrying out maintenance in bathroom #2, I would like to be able to stop water supply to it. I am unclear on where I should site the isolation valve for this.

 

[Doggit]

If you want want to isolate the water to do maintenance, but you're pipes in each bathroom are going to be concealed, then you meed to find somewhere to put an access panel. There are various methods such as magnetic catches for panels or tiles, or panels that can be tiled over, but you'd need to elaborate on how you're finishing off the bathrooms. The other alternative, is to have the isolation panel outside the bathrooms, on the pipework before it branches off to the bathrooms.

 

[Gas2Air]

It's an unvented hot water store. Turn off mains and run off cold or hot water from the bathroom you want to maintain, no need to add an extra isolation valves.

 

[TCCHeating]

Sorry, I haven't explained myself. I want to have a mechanism to isolate water to each of my 3 bathrooms. For example, if I am carrying out maintenance in bathroom #2, I would like to be able to stop water supply to it. I am unclear on where I should site the isolation valve for this.

We get it. You want to be able to isolate 1 bathroom while keeping the other bathrooms in service.

So you are looking for suggestions on where to put the isolation valves.

Problem is.

My jedi mind tricks are a bit rusty at the moment and the crystal ball is in for repair

 

[Jupiter01]

OK...get the point.
As the water pipes travel under the floor board they go across some stud walls which have wardrobes. I could have isolation valves in here but I'm struggling to design the pipework in a way that the isolation valve is above floor level when the pipes are running below this level. I could do with a tall isolation vale which presents itself above the floor boards

 

[TCCHeating]

I could have isolation valves in here but I'm struggling to design the pipework in a way that the isolation valve is above floor level when the pipes are running below this level.

Elbows

 

[Jupiter01]

Is it okay to go up and down in this fashion where water pipes are concerned? If yes, an elbow will indeed work.

 

[Doggit]

The elbows will reduce the water flow slightly, but nothing to worry about. But you seem to be making an assumption, that there's going to be regular maintenance, and that you need easy access to the valves, whereas you may not need to shut them off for years. Instead of branching off of the main flow, can you take the hot and cold to a point where you put all three isolation valves together, and then take the pipework to each of the bathrooms from there. Even if you have to lift a piece of carpet in the corner of a hallway, and then unscrew a piece of floorboard. You also seem only to be considering isolation valves that have a handle on them. What's the diameter of the pipework that you're going to use.

 

[stardanny]

Better to put isolation valves on pipe just before it connected to taps on every basin, bath and toilet, that way you can repair tap without turning off other. You will have to make bath panel easy removable.

Daniel.