How to join into underground drain pipe

[@ChristophPowell]

Thank you for taking the time to do this video and upload it - I need to install a rainwater hopper on an existing drain pipe and this has given me the confidence to get on with it.

[@SamDaviesBuilder]

No problem at all, thanks for watching and I hope your project goes well!

[@saulhuck8340]

I watched the video, bought the bits, did the job. Brilliant, concise video that shows exactly what to do and completely took my uncertainty away. Many thanks for this!

[@SamDaviesBuilder]

Thanks, glad the video helped and you were able to do your job 😃

[@adamsawyer1763]

Always looks easy when done by someone with experience and sped up! Great video, just the answer i was looking for. 👍🏻

[@SamDaviesBuilder]

Thanks, glad it was of help to you 😃

[@justinW624]

Great video! This man has obviously laid a lot of pipe over the years! #Expert #DiY

[@SamDaviesBuilder]

A lot of pipe! I am flattered to get a comment off the man who taught me everything...

[@MattBotwood]

Great video, which helped me insert a new drain junction. The collars I bought had small lugs which stopped them being pushed all the way on to the pipe, which I had to remove with a wood chisel.

[@SamDaviesBuilder]

Thanks, glad it helped. The collars you had were just normal pipe joins - you need slip collars which don’t have the bit in the middle. You sound pretty resourceful though and got around the problem!

[@MattBotwood]

Ah! Thanks, I’ll know next time. Didn’t notice any other joining collars at my local Screwfix, but I was only looking at the pictures 😂

[@SamDaviesBuilder]

@@MattBotwood just had a look on screwfix and the one you bought can be used as a slip coupling too as it just has lugs which you chiseled off, so it was all correct what you did! I actually didn’t know they did one which could be used as a joiner or a slip coupling so you’ve taught me something 😃

[@busyplayingames1238]

Is glue needed?? My plumber did without glue told me it wasn't needed 😢

[@SamDaviesBuilder]

No glue needed on these type of pipes. What did the pipes look like your plumber was doing for you? Also this is in the UK, where in the world are you?

[@emmalippiett1980]

Great job 👌🏻

[@SamDaviesBuilder]

Thanks 😁

[@JoelMorley-i9w]

Am I right in thinking that waste could've come down that pipe at any time? Or was this pipe running only from the house you were working on - out to the main pipe?

[@SamDaviesBuilder]

Yea it was only the house I was working on so I made sure no one was going to use anything

[@diyeric4114]

Hi Sam, iwas to add a w.c. downstains so can you tell me the names of the fittings from the pipe in the ground through to the w.c. pan . there's so many fittings

[@SamDaviesBuilder]

If you are adding a W.C onto a section of pipe you should really put a manhole where it meets the pipe work outside. Without a diagram I couldn’t tell you exactly what fittings you’d need

[@andyaston]

Thanks, all the info I need.

[@SamDaviesBuilder]

Glad it was helpful! 😃👍

[@PauloBurgio]

Nice job. I would have just cut all the edges nice and straight to assist the final reinstatement

[@SamDaviesBuilder]

Yea good point, the straighter the edges the easier it makes it

[@lukhanyokongisa8798]

Good job I need to install a t junction on an existing waste pipe it did not work I will do this now

[@SamDaviesBuilder]

Great! Make sure you have lubrication for the pipe to make it easier! And those all important slip collars.

[@tonupturner]

Do they have to be at a certain depth?

[@SamDaviesBuilder]

If you’re joining onto existing like this then you have to go with what you’ve got. There will be specific depths for new drainage but it will differ depending on if it’s foot or vehicle traffic. And then other times it’s what you’re connecting into that determines it

[@tonupturner]

@@SamDaviesBuilder Thanks Sam 👍🏼

[@SamDaviesBuilder]

@@tonupturner no worries

[@Hew.Jarsol]

How do you connect a modern 110mm pipe into these old clay manhole foul half pipes?

[@SamDaviesBuilder]

If it’s a brick chamber I’d smash a few bricks out and cut the 110mm pipe to suit. You’d then bench (mortar) around the pipe where it comes into the manhole making sure there’s no sharp edges on the new pipe and it’s got a smooth entrance to the manhole

[@MarcusT86]

Good stuff buddy. So was this a plastic pipe you were exposing? Back when I took up my concrete side path I basically destroyed the original clay pipe because the concrete had obviously clung to it over the years and clay pipe was brittle under the slightest pressure. Was there a way to avoid breaking the clay pipe? Only because I’m about to do the back garden path running along the back side of my house.

[@SamDaviesBuilder]

Cheers! Yea was plastic pipe, they're surprisingly tough. The clay ones like you mention are so brittle sometimes, it musth have been so hard to work with them back in the day. All I could say is just go careful when digging around them (easy to say I know). Sometimes there is just no way to avoid breaking them if you have concrete around them

[@MarcusT86]

@@SamDaviesBuilder thanks buddy, I’m glad you said that, as I thought I was being an idiot for breaking mine before!

[@detxer101]

Hi Sam, great video. I need to do exactly this to an existing poo pipe. Is the pipe in the video a poo pipe? I just want to check as I am worried that when adding the T piece in it could create small gaps inside the pipe which could cause a blockage, is this something to worry about? Many thanks!

[@SamDaviesBuilder]

Hi, thanks. Yea the main run of the pipe is for foul waste and I see what you mean about little gaps when you add the t-piece in and the slip collars but I have had no issues with doing this so far - just make your joins as tight as possible. If you are adding a new toilet from the house and joining in like this I would put a manhole in instead of the T-piece so you have a rodding/inspection point.

[@detxer101]

Perfect, thanks Sam, much appreciated! @@SamDaviesBuilder

[@markyy3590]

What kind of ££ does this cost to have done ?

[@SamDaviesBuilder]

This was a days work with putting the concrete back too so whatever a builders day rate in your area would be.