Air vent

[Dee]

Hi

Ivm having to virtually replump the waste that a   £¥([<!^¿ plumber did....'fall' went uphill!!

Having corrected that I now need to connect a tiny basin into the shower waste.

I have no choice but to route it this way but it was suggested I will need to vent it ???

Where would I put the vent?

Picture please on what I need to buy.....

I am clueless on this next step! See image of pipe run, the blue is what I'm adding.

Also any tips on fitting a weld Y 'T' into an existing pipe run?

Yours in desperation,

Dee

[markc]

You may need to vent it, if so then a air admittance valve (AAV) would go at the end of the run and above the sink level, however, you already have another sink on the line and if that isn’t having problems then unlikely the additional one would.

 

[Dee]

Oh Marc thank you for being here! 

No sink is installed yet, they're both bathrooms are  new installs, just pipe runs so far

[Dee]

Which run and which basin?

[markc]

@Dee I really can’t see your shower or any basin having enough flow to pull water out of another trap, certainly can and does happen with toilet flushes but in your case I wouldnt bother. Text book installs and reality are different things, if this was my house I wouldnt fit an AAV

[Dee]

Thanks! One less job to do.

Am I asking for trouble adding the blue line? I've never cut into a pipe before and added a joint. 

[ToughButterCup]

  On 29/11/2023 at 08:59, Dee said:

...

Am I asking for trouble adding the blue line? I've never cut into a pipe before and added a joint. 

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No. @Dee. Don't let it intimidate you. 

 

You need

• A small sharp fine-bladed saw to cut the pipe
• A tee joint ( push-fit I suspect)
• and a couple of 90s (also push-fit)
• gloves 
• and an old towel
• a trap for the sink
• connectors for the taps
• and a sod-it-I'm-going-to-do-this-grin on your face

Heres a good online resource to review before you dive in 

I searched for >How to make joints in plastic pipes on YooChube

 

https://www.youtube.com/results?search_query=plumbing+plastic+pipe+fittings

 

Detailed photos will help us help you.

Look at @Onoff's  or @Pocster bathroom thread(s) for  examples of how to illustrate your  work (cockups)

There's not a person on here who doesn't review what's on YT before they start a job. You are not alone

 

Have a look at some of the results of this search

 

https://forum.buildhub.org.uk/search/?&q=bathroom&quick=1&author=Onoff&search_and_or=and&sortby=relevancy

 

 

[joe90]

Might be worth using anti vac traps just in case which are a sort of air vent   https://www.screwfix.com/p/mcalpine-anti-syphon-bottle-trap-white-32mm

[Pocster]

  On 29/11/2023 at 09:59, ToughButterCup said:

Look at @Onoff's  or @Pocster bathroom thread(s) for  examples of how to illustrate your  work (cockups)

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Excuse me !

@Onoff is a cockup for sure .

Mine is skilled work done in an eclective non conformed manner .

[joe90]

  On 29/11/2023 at 11:40, Pocster said:

Mine is skilled work done in an eclective non conformed manner .

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That takes 11 years 🤷‍♂️. 

[Pocster]

  On 29/11/2023 at 11:43, joe90 said:

That takes 11 years 🤷‍♂️. 

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Taking my time ensures a quality job . Rushing won’t get it done quicker - SWMBO told me that 😉

[Pocster]

  On 29/11/2023 at 11:45, Pocster said:

Taking my time ensures a quality job . Rushing won’t get it done quicker - SWMBO told me that 😉

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Not on about building now ☺️😉😉😉

[Dee]

Anyhoo, I've put some images up to illustrate the job. 

I think I would have to notch too much from joist to get 32mm pipe through into cloakroom.

[markc]

Don’t notch the joist. Go right (looking at the pic), through the stud and then down through floor plate.

[Dee]

Have I been over thinking this?? I was focusing on connecting the basin on the others idea of the wall into the shower waste....can I instead connect into the basin waste as per the image? If I can, where would I connect to?

[Dee]

Ps. There's barely any fall on the 33mm waste seen in the image but I can't gain any more

[markc]

  On 30/11/2023 at 15:24, Dee said:

Ps. There's barely any fall on the 33mm waste seen in the image but I can't gain any more

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That’s looking pretty good, fall on a shower or basin isn’t as critical as a soil pipe so any fall is ok.

basin waste through wall and into other basil waste is fine, if the basin is on a pedestal then anywhere that works (and is out of sight)

Edited November 30, 2023 by markc

[Dee]

Phew! So can I connect basin B into basin A waste? Badin A waste is in picture

If so How and where?

[markc]

  On 30/11/2023 at 15:40, Dee said:

Phew! So can I connect basin B into basin A waste? Badin A waste is in picture

If so How and where?

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Another Y piece and anywhere that works

[Dee]

So I think I will have to bring the waste through the wall rather than under the floor and connect to the waste in the image, that way I can get some fall. Can I connect into the  vertical but low down?

I will understand and get on with it soon....promise!

[Dee]

So, red pipe coming off basin A, through wall, blue connecting to purple basin waste B

[markc]

@Dee yes that will work

[Dee]

Brilliant!

Shopping list starting from the red side....

32mm pipe

1 x Y

I x 90⁰ elbow

Blue side

1 x 90⁰ elbow

1 x Y (but upside down)

[Dee]

Got that last image wrong....is this right??