50 minutes ago, Thorfun said:

seem to recall @Nickfromwales saying something about 32mm pipes furring up over time.

Waaaaa . Don’t know what he sticks down his sink ! . Mr muscle 💪 foam will sort out a blocking pipe .

So stop f ing - and do it all in 40mm then 😁

If you'd spent 3 decades cutting out blocked pipes, you'd see my PoV. Even 40mm pipes from kitchen sinks and showers end up with enough bore to not get your thumb down the middle.

If the small-bore waste is dropping vertically more than 1000mm, then you'll need air admittance, if it is dropping a whole storey then you'll need that to be in 50mm pipe with a 50mm AAV on the highest point. Wastes should never drop from FF to GF, they should always only travel horizontally to a stack, after falling vertically from a basin trap etc.

 

Pipe unblocking chemicals etc is just a way of saying, its going to block so I'll pour this carp down there when it does  

@Thorfun, I would install 50mm anywhere where it's getting buried, and then drop to the size you want when it gets exposed / above floor. You'll spend a few tenners more upsizing and that buys a shit-load of insurance. You'll be using the same amount of time and labour regardless, so defo get 32mm pipe off the menu for starters!

7 minutes ago, Nickfromwales said:

so defo get 32mm pipe off the menu for starters

But you will need some for the connection to 1 1/4 basin wastes.

thanks all. guess we'd better get shopping for basins first then! will ask more questions once we have those and 'temporary' fitted.

Edited April 23, 20233 yr by Thorfun

22 minutes ago, Nickfromwales said:

I would install 50mm anywhere where it's getting buried, and then drop to the size you want when it gets exposed / above floor.

Now I’ve built my fluffing house you tell me that !

Should of done (expletive deleted)ing 110 to the sink…

23 minutes ago, Jenki said:

But you will need some for the connection to 1 1/4 basin wastes.

Yup. I use 40mm rising up, with a 40mm bend / elbow facing forward. At 2nd fix, I insert a 40x32mm reducer and the correct length piece of 32mm pipe. If space is tight, I will put the 40mm elbow at the floor and then rise with 32mm.

 

8 minutes ago, pocster said:

Now I’ve built my fluffing house you tell me that !

You were an unstoppable, formidable pipe beast that couldn't be tamed.

I had to let you go, it was the right thing to do.  

 

Seriously, I've been banging on about this for bloody years, do try and keep up!!!!!

 

4 minutes ago, pocster said:

Should of done (expletive deleted)ing 110 to the sink…

PMSL 🤣

@Thorfun here’s the wc you need 

With but - note - one (1) flush button.

That's an opportunity for serious misunderstandings innit?

52 minutes ago, ToughButterCup said:

With but - note - one (1) flush button.

That's an opportunity for serious misunderstandings innit?

1 flush so you both go in harmony 

Umm

Reminds me of school.

Those candles, reminds me of my sister's school.

"Candles out girls" said matron.

POP.

 

Now find the matching shower.

Got nothing to offer here, only that I proper enjoyed reading this thread (while at work). Passed the time great, your gaff must be colossal...!

his and hers toilets aside, I have another question....well.....more of a sanity check to be honest. Tomorrow I am putting down the insulation in our kitchen in preparation for the screed. our sink is in an island and so I need to run the waste pipe and water pipe straight down through the block and beam and in to the basement. 

 

the island will contain the following:

 

Sink

Quooker with Cube

Dishwasher

 

so I was going to run a 40mm waste pipe and hot and cold feeds for sink and cold feed for dishwasher (all 15mm Hep2o). Do I need anything else? 

 

Also, I was thinking of running a large bore pipe and putting the hot and cold feeds through it. that way I can foam the large bore pipe to reduce sound transfer between the kitchen and basement rather than drilling 3 holes for the water pipes. is that a stupid idea or genius? am I just trying to solve a problem that doesn't exist by running water pipes in their own holes?

 

most important thing is am I missing anything to run now as it'd be a bugger to do it later.

51 minutes ago, Thorfun said:

so I was going to run a 40mm waste pipe and hot and cold feeds for sink and cold feed for dishwasher (all 15mm Hep2o). Do I need anything else? 

just remembered that up above @Nickfromwales said 50mm for anything buried. the kitchen sink waste isn't 'buried' but it'll be a pain at a later date to get to as it'll be above the ceiling in the basement. also, it'll be about an 8m run to the soil pipe from the kitchen sink. worth using 50mm? I'm thinking it might be.

7 minutes ago, Thorfun said:

just remembered that up above @Nickfromwales said 50mm for anything buried. the kitchen sink waste isn't 'buried' but it'll be a pain at a later date to get to as it'll be above the ceiling in the basement. also, it'll be about an 8m run to the soil pipe from the kitchen sink. worth using 50mm? I'm thinking it might be.

ok, so I 'think' after re-reading the advice above I've decided to run 40mm through the floor. this will then reduce to 32mm at the sink. and then I can attach the 40mm to 50mm pipe for the run to the soil pipe. so from the sink it'll be 32mm -> 40mm -> 50mm -> 110mm. 

 

good, bad or ugly?

Personally after the first 90° elbow I always use 90° swept bends.

 

Usually the kitchen sink starts with a 40mm waste pipe. A basin usually a 32mm waste pipe.

 

Oh and a bath and a shower usually  a 40mm waste. Showers some times bigger.

Edited May 3, 20233 yr by Marvin
Further info

@Thorfun you’re having suspended ceiling in basement yes ? ( sure you said that ) . So no worries about access if anything does f up .

Also remember @Nickfromwales hadn’t built a (expletive deleted)ing house on his own and I have - so ; WORD !

1 hour ago, Thorfun said:

this will then reduce to 32mm at the sink

kitchen sinks are 40mm not 32mm..

 

2 hours ago, Thorfun said:

Also, I was thinking of running a large bore pipe and putting the hot and cold feeds through it.

ducting them individually is a good idea, use either 32mm or 40mm PVC and use a pair of 45° bends to get them out of the slab as the Hep2O will like you for it … don’t foam them in, they won’t make that much noise.

 

3 minutes ago, pocster said:

Also remember @Nickfromwales hadn’t built a (expletive deleted)ing house on his own and I have - so ; WORD !

finished is it …….?? 🙄

Just now, PeterW said:

finished is it …….?? 🙄

Define finished ….. 🙄🙄🙄🫤

13 minutes ago, pocster said:

Define finished ….. 🙄🙄🙄🫤

 

You know like as in bathroom finished...

13 minutes ago, PeterW said:

kitchen sinks are 40mm not 32mm..

awesome. 40mm through the B&B it is then! I can then make the decision as to whether to up that to 50mm at a later date.

 

14 minutes ago, PeterW said:

ducting them individually is a good idea, use either 32mm or 40mm PVC and use a pair of 45° bends to get them out of the slab as the Hep2O will like you for it

I was actually thinking of putting more than one hep2o pipe in the larger bore ducting! thanks for the tip on 45° bends but in this instance I'll just send them up vertically from basement to kitchen through the B&B. any bends will then be under the ceiling in the basement.

 

15 minutes ago, PeterW said:

don’t foam them in, they won’t make that much noise.

the foam wasn't to reduce the noise of the pipes it was so there wasn't a hole going through from the basement to the kitchen so making noise in the room below/above won't travel through the ducting to the other room.

1 minute ago, Onoff said:

 

You know like as in bathroom finished...

Ah right . My bathroom is finished yes ! - is yours ? 🤔

20 minutes ago, pocster said:

@Thorfun you’re having suspended ceiling in basement yes ? ( sure you said that ) . So no worries about access if anything does f up .

Also remember @Nickfromwales hadn’t built a (expletive deleted)ing house on his own and I have - so ; WORD !

not suspended ceiling like your office type ceiling. it will be a dropped ceiling that will be plasterboarded and skimmed. 

Just now, Thorfun said:

not suspended ceiling like your office type ceiling. it will be a dropped ceiling that will be plasterboarded and skimmed. 

Nah . Don’t do that . Suspended ceiling means you can access all the f ups ! 

1 minute ago, pocster said:

Nah . Don’t do that . Suspended ceiling means you can access all the f ups ! 

I don't have any in my house....at least that's what I tell myself.