Extending soil pipe

zone

If anyone could help with this please. The pics below are showing the old pipe run to the manhole. I'm hoping to use part of this pipe and connect a new run to it with a Y adapter. That way the old toilet would still be useable and a new seperate one would be installed. If this isnt possible i will probably get rid of the old one and just connect a bend section to the old pipe.



I'm trying to find out how much it would cost to excavate and run a new underground sewage pipe of about 5 metres length. Going by the pic above can anyone could give me some ballpark figures for all of the following work if i were to employ a plumber:

- to excavate the ground and create a 4-5 metre long trench
- exit soil pipe through concrete floor or go through an outside wall into the ground
- install new toilet and all plumbing
- connect new foul pipe to old and install an inspection chamber

thanks


ps: i'm in the west midlands, near birmingham

MX5huggy

How far is the curent toilet from the new location? may be you can just run the pipe internally?

I would just be getting on with the ground works my self its not rocket science but it is building regs notifable.

yan1

Hello again!
You won't get a plumber to do all the work you've stated. Get a groundworker to do everything apart from plumb in the new w.c. then get a plumber to finish off. Or the best option is to get a general builder to do whole thing, should be cheaper and will do the pipework correctly as he will connecting the new w.c.
I would expose existing pipe a little fuerther along just past the collar, cut either side of the collar, use two rubber adaptors with a bit of pipe in either end connect the y joint then run the new plastic to your new w.c.

without seeing the job I would estimate between £600 and £1000 (labour and materials).

Hope this helps.

zone

yan1: youre right thats what i was planning to do too. I need to dig round the collar and further up to make enough space for the joints. I will add another pic soon when this is done.

I'm also considering putting in an access chamber instead of the Y adaptor. This is so that any future blockage can easily be removed.

All thoughts welcome.

mikey72

I've replied on your other posting, access chamber is the way to go.
look at
http://www.screwfix.com/prods/18837/Plumbing/Underground-Drainage/Mini-Access-Chamber-300mm-Base,
Will do exactly what you want, can be used with plastic and clay pipes with adaptors, and is adjustable.

zone

mikey72: thanks for that link you provided, it is exactly the type of thing i probably need.

Also one of the inlets shown on the chamber pic is lower than the other two, would this cause a problem? if anyone can help thanks.

plumb1_2

2x Clay to 110mm


2x Slip coupling

zone

plumb1: thanks for the links. i've got a couple of slip couplings now but they are so hard to move on the pipe. Should i be using some type of oil or lubricant? I was trying washing up liquid but that didnt help.

plumb1_2

zone wrote: »

plumb1: thanks for the links. i've got a couple of slip couplings now but they are so hard to move on the pipe. Should i be using some type of oil or lubricant? I was trying washing up liquid but that didnt help.

Washing up liquid should be ok, but personaly i use silicane spray.
If they are hard to move, you can use a small rope wrapped round the pipe to twist it on, or use something like a oil filter remover strap.
You can also use a block of wood to knock it on, place the wood against the socket and tap it.