bathroom waste pipes

[sha256]

Hi Guys,

I am redoing my bathroom and have gutted the place. My toilet/basin/shower waste is connected and there are three connections for each (see image attached). My problem I dont know which pipes to use to connect the waste for the shower and sink. I have some 40mm pushfits but the holes that connect them to the waste are about 50mm.
Any advice on this would be appreciated.

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[theoldun]

What you have in the corner is called a manifold, with three 50mm connectors.
You can use any of them with a 50mm reducer down to what ever size waste pipe you are using.
With the 110mm bend stuck in the top of manifold, curious as to where your vent pipe is?
Regards oldun

 

[sha256]

So thats what its called! Thanks for that theoldun. The problem with this manifold is the sink/shower holes dont have a rubber seal. When I took the old pipes out they came out with ease because there was no real connection. Would it be worth getting a manifold that has a seal on it ?

 

[r896neo]

you can get rubber inserts

 

[theoldun]

As 896 said you can buy new seals, although at our age we never use rubber inserts now as we are to old to bother about getting the leg over.
Regards oldun

 

[Hugh Jaleak]

Will need correct seals fitting. Otherwise job will never conform to regs and the room will stink of sewers!

I also share the oldun's curiosity about the vent, or is this a ground floor bathroom?

 

[xr4x4]

The blue water supply pipe might be a clue.

 

[sha256]

Thanks for the replies guys.

The bathroom in on the ground floor. May I ask what what a vent pipe is ? And what its used for ?

Also, I've been looking around for a reducer from 50MM to 40MM (pushfit pipe) to no avail. Does anyone know where I can find these elusive bits ?

 

[Hugh Jaleak]

I did spot the blue water supply, but never like to assume anything! Vent pipes are used to ventilate the drainage system, on a 2 storey (or more) building, the stack tees at first floor level to accept the WC connection, then continues upwards to above roof level to vent to atmosphere.

Do you require the reducers to fit the manifold? Manifold looks like it may be Terrain, but if you could find manufacturers name on it, should be able to link you to correct parts. If not then hook the entire thing out and fit a new manifold.

 

[sha256]

Thanks Hugh.

What do you mean by terrain ? I cant find a manufacturer. I am thinking of getting this: http://www.diy.com/nav/fix/plumbing...anifold-Skt-Spig-Grey-11577819?skuId=12088525

My only problem is how do I remove the old one ? Will pulling it cut the job ? Or are manifolds welded on ?

 

[Hugh Jaleak]

Terrain is a manufacturer of plastic pipes etc, the colour of your manifold etc looked not dissimilar to Terrain. (Slightly different shade of grey!) Manufacturers name and part number is usually moulded into the fitting somewhere, usually on the socket.

Some soil pipework is solvent welded, but underground drain should be 'push fit', i'd be confident that manifold will just pull out. (Twist it side to side whilst gently pulling and it should come out.) Lubricate the rubber seal in the socket of the drain in the floor before attempting to fit the new manifold, (the item in the link is what you need).