waste pipe

Hi all, Looking to install a small washroom in the first floor of my house. There is a single bathroom on the ground floor of the property underneath the stair. Wondering how best to connect in to existing drainage. Conscious that Regs state max. 6m for toilet and 3/4m for basin/shower. Without...

I’ve recently fitted a concealed grohe cistern (this one https://www.grohe.co.uk/en_gb/rapid-sl-3-in-1-set-for-wc-0-82-m-installation-height-38773000.html) and am now fitting the wall hung pan (...

Hi, I have an 8 foot section of a cast iron stack that is failing and is from ground to plastic above. It was originally external but is now internal to a garage (and tucked in to the corner). It just serves the upstairs bathroom and all inlets are in the higher level plastic pipe. The CI...

I'm going to be buying a new kitchen within which the washing machine will be isolated from the sink / dishwasher and will need it's own drain. I'm proposing to run this in the floor, directly into the foul waste, however am unclear about the requirements of the trap. I've had a look at the...

We have removed a macerater from our ds loo and will be connecting with the inspection chamber in the garden. The setup currently looks like this. Pictures attached. I have notified BC but I haven’t been able to speak to anyone with it being Easter. The air admittance valve on the white pipe...

I'm looking to install a macerator in an underground room. I need to pump the waste up to a 4" soil pipe at ceiling level but, because of ceiling joists and the position of the existing soil pipe, I will struggle to do my vertical run first, as I know you are supposed to do. Running the...

Evening, I'm installing a Saniflow Compact (stack issues) and have a headache with the discharge waste pipe. I need to use 32mm solvent weld for this but the outer diameter (OD) is 36mm and the toilet accepts 32mm OD. I thought about a 32mm-32mm compression to convert but it makes me nervous for...

Morning all, I'm putting in a new water supply pipe and relocating the stopcock. Where the pipe enters the house I need to put it into 4'' pipe and insulate. It will need to go through 90 degrees to come up into the house. Does MDPE bend enough for a 100mm 90 degree elbow to be ok or will I...

Hi - I am installing new kitchen and changing position of sink. Access to soil pipe is 3m from sink and will run behind units with one 90 degree bend. At end of run just before soil path the waste will pick up washing machine and dishwasher waste. Would 40mm pipe be sufficient with...

Afternoon All, I have a detached garage which I wish to have a waste pipe installed in for a dog grooming bath. The new build house has an internal soil stack in the corner closest to the garage. Plan is to dig up the garden alongside the garage and run a 6m long soil pipe just under the house...

I'm installing a new sink in our kitchen, and am at the stage of installing the waste pipe work. The threads that connect the pipework to the sink waste, are they all the same size? I ask as p traps come in 32-38-40mm sizes. I am assuming this is just the connecting pipe OD size and doesn't...

I've just started looking at these, to put one in a bedroom. Are they any good? The idea of a free standing unit with no need to tile the walls does sound attractive. Do they all have the same waste pipe arrangement and waste pipe size? I need to sort out a waste pipe under the floor and...

Guys I have just moved to a new place and was about to start painting and sealing the gutters and down pipes. The house has a cast rainwater/waste water down pipe (not soil pipe) that has had a section replaced for pvc. The section is one up from the ground. Is this alright? Should it all be...

Can i use a 45 degree bend in the middle of a soil pipe run. I have to install a new inspection chamber, cannot get it square on to the existing chamber due to falls etc so would need a 45 about 2 meters from each chamber. Is this acceptable to building regulations and is it sensible. I know...

I'm planning on building a garden office in place of the current shed. It will be at the back of the garden, ~ 40 metres from the house, and have a toilet, electric shower and washbasin. From what I've gathered, for water supply I can use 25mm blue MDPE and this needs to be buried underground...

Hello, Is there a maximum depth below floor level a ground beam can be cast? The reason for asking is there need to be waste pipes which would pass right through the ground beam, obviously weakening the beam and probably causing the waste pipe problems in the future. If i install the beam...

My Daughter has moved into a flat that has no provision for a Washing Machine. There is space for one, but fitting it would need some trickery with the drain hose. I could fit a new proper waste pipe underneath the units, but it's a lot of work considering it's not my flat. I'd not hesitate if...

Hi folks, I hope you are all well. Please go easy on me - I am an amateur DIY'er and this is about my first planned out plumbing job! With that out of the way, I hope I have done my research correctly but before I start to lift a drill, I would really appreciate it if I could get my 'homework...

Hello, A plumber has just installed a new waste pipe for a new bathroom which runs approx. 7 meters. I was skeptical about his work so thought i'd have a look at what was done. The first 1 - 1.5 meters of the pipe has a slight upward incline on it (tested with a spirit level) before it declines...

Hi all, I have an old lead waste pipe running through my house. I'm moving the bathroom so it's no longer required. However I want to remove the pipe to use the void to carry new water and central heating pipes upstairs. The lead pipe is about 50mm diameter and goes into a massive waste pipe...