Don't know about regulations in the UK, but when I learned this in the USA, the code was 1/4 inch per foot min, max 3 in per foot or vertical. So there actually is a bit of fudge room in the code. Personally, the first bend in my index finger is about right for a 1 in 40 slope on a meter level, so I can just put my finger at the end of the level at that point to get slope on a pipe. Repeat measurements on down the pipe one meter at a time. No tape or blocks of wood needed. But that is just how I do it. And for me, the exact slope is not critical (as long as it is within code) but that there are no dips are valleys in the pipe along the path. But how doing that is another topic (there are also easy ways to get that, especially on longer pipe runs).
Cheers boys, I like the new logo!!! Yeah, onto a new big job, filming has already started. Here’s a little teaser for you - Blake’s profiles are involved and I know how much you boys like them😉
@@jimichip Cheers James we are well chuffed with it , we almost look professional now 😆. Look forward to the new project ..... excellent profile choice 😉🧱👍🏽
Good tip, guys. Given that there are 39.37 inches to a metre, a quick ready reckoner for 1 in 40, if you pardon the mix of systems, is - 'an inch a metre' - which can be useful.
Nice tip! 👍 Out of interest, I was always taught that if you have (in old money) a 4” pipe it required a 1 in 40 fall, 6” pipe - 1 in 60 and 9” pipe - 1 in 90.
Thank you very for the video. I'm not in the this kind of trade, but there are a lot dishonest people in my place. I'm not here because I want to build my house myself, but your video help people from being cheated. I wish your business success.
Remember being taught about self cleansing velocity at NESCOT. Interesting that Roger in the background says a fall of 1 in 200 for the patio. If my history serves me right, that's the fall Joseph Bazalgette laid his London sewage system to after the 'Great Stink' and when London was plagued with cholera. As for gin and tonic. Revolting drink, best place for it is on the patio.
Neil Actually I looked it up and the industry standard for domestic patios is 1 in 80, If it is commercial paving then it is 1 in 60. 1 in 200 would be slow to drain in a storm but a lot of paving is now laid as water permeable. There is a good video coming up on laying paving
Great tip. I'm just laying a patio, standard fall is 1 in 80. I could have used this idea. Funny thing too is I'm drinking gin and tonic now, not on the patio though, it's too cold and it's not finished 😁
For patio, I usually just lay with the bubble touching a line (Every level is different). That way you can use the straight edge for across and diagonal as normal.
I have a concrete floor in the garage and just outside the garage door lies the man hole cover. What i would like is to put a kitchen sink waste under the floor as i cant use wall mounted waste pipework as were insulating the walls with dot n dab kingspan so cant loose space. Would i need to use 4" pipework in the garage to connect into the manhole waste.
Here in Denmark the fall is a little shallower at 20mm per 1meter run for Dn 110 drainage pipe. So instead of a 45mm block we would have a 36mm block on an 1800mm spirit level.
Hi mate, thanks for the great video, I just want to ask you if there is a building regulation that stipulates what the fall should be on a patio? or is anything between 1 in 60 to 100 ok? Many thanks Chris
Great tip fella's, thank you. So, does this mean that gin should be drunk sitting up, reclining or laying down. Or is that just a consequence as my London Dry gets drained. Stay safe and well :)
Great tip👍 knew about the level thing but not the calculation. For instance if you can’t get a 1-40 as levels to existing drain wouldn’t permit, would a 1-80 be acceptable, Or is that too slow?
Nice tip, I'm doing a self build and sorting the soil pipes now. The current UK Regs are a fall of 1 :40 to 1:110. I worked out that equated to an angle of 1.43° to 0.52°. My laser measure has an angle finder on it, just lay it on the pipe and check its within range.
@@InstantSleep I designed and built an annex myself with no experience and have passed all the building inspections whilst running my company from my home office. I used a tool I already own to very quickly check drain falls.
Fantastic tip! Thanks SB & James! Does this calculation also work for smaller spirit levels? Say a 1200 spirit level? So would you do 1200/40 if the fall you want is 1 in 40?
It does Manish, just divide the length of your level in millimetres by 40 and the answer is the size of block that you require. So in your case 1200/40 = 30mm block.
@@TurinTuramber we use lasers to mark a datum so there not normally out of level on the next slab lol plus our ribbed stabilas are good than most levels
@@kierenboimufc5940 No doubting the greatness of the laser levels and profiles. The older brickies used to grind and bump courses, probably not as common these days.
@@TurinTuramber still have to doit the frames we have on site come up 10 mm plus in gauge so have to bump plus do a lot of bump and grinding in footings
Question - So over a distance of 13m - 13000 / 40 = 325mm Min fall. 13000 / 110 = 118mm Max fall. I sometimes don't see the wood for the trees. But the Max fall is less than the Min?? Help?? I'm wanting to drop some soil pipes down through a pot and beam floor into a new build house with a un-supported basement. I am going to suspend the pipes on brackets attached to steel work in the basement roof which the house is being built on. I want the pipework to only drop as little as i can get away with so that the pipework does not get caught by higher vehicles which at the moment are spec'd to fit through the entrance door to the basement / car park area. i have 13000mm distance for the pipe to travel to get it outside the building. Over 13000mm is the fall at 1 in 110 = 118mm?
Pipes with larger diameters require less of a fall than smaller pipes.....ie 4" pipes = fall of 1:40.....9" pipe = 1:90.....because there is a larger volume of water in the larger pipe it can be laid shallower.
Would I do the same for a short run? I have a 1.2 meter run and a 600mm level. Would I just divide 600 by 40? Sorry for the simple question I just want to make sure i do it right!
Yet another short to the point top tip! Love it guys! Is it me or are the tips like this where is so simple make you wanna kick yourself for not thinking of it first??
Thanks to his bottom right hand corner accent( ie the South East of UK) he seemed to say 'a 1 in 44' whereas he actually said ' a 1 in 40 fall'. People brought up in the left hand corner of UK would understand the importance of a pronounced 'r' or 'rrrs'.... or even perhaps ...'arse'!
Is back of the bubble about 45mm on 1800? That's what I've tended to use tbh and it still looks good on a G and T, unless of course someone has tried to have a shit on the patio, then nothing looks good.
All tips welcome. It Could take a professional a life time to come up with a tip and two minutes to learn it so always ears and eyes No matter how big you are in your game
so how do you work out a 1 in 20 fall? apologies for being slow😅 but using an 1800 level is that not 1.8 in 40 ? im lost with the calculation..say if the level was 1m long is it just a 20mm block id need ?
I brought a small 8" level that has 2 bubbles in the middle 1 is for level and the 2nd bubble has numbers on in 1-5 so 1 is 1 in 10 and 2 is 2 in 10 pitch and so on so no need for the block check it that way Always use the pipe laser and target but still double check with that as with higher temperatures the laser can wonder around a bit plus it's got a magnetic strip at the bottom so you can either leave it hanging out of a pocket or stick it to the trench box and keep moving it along with you Was a fairly cheap tool but worth it's weight in gold to me as a tool of my trade
Do this a lot actually. Works on the vertical of course, good for setting velux splays perfect. Also put a either end is good for leveling coping stones.
I've been along some drivers in Uganda and 1 in 40 ain't steep. There have been times I wondered if we'r would make it to the property 🤣. I never actually realised the drop was so shallow for a drain.
The 1 in 40 for 4" , and 1in 60 for 6" was a rule of thumb used for salt glazed pipes over 50 years ago . The Building Regs only state a "self Cleansing fall of 1.2 m/sec " .not gradients. In practice you have a start level and a finish level and if you can make it fit and work , no questions will be asked . Very soon Roger will get fed up with me . Just tell me when I am wrong
Two minute tip is a great idea for us mere mortals, keep them coming!
Will do!
You can also use it vertically to build Italian towers.
😂😂😂
😆
A good video with some solid content, moved along nicely.
Excellent tip James. You learn something new every day. I didn’t know about setting the fall too steeply would leave the solids in the pipe.
Leaves them high and dry
Only the heavy ones, the floaters make it regardless. Which are you?
You truly are the professionals
Love it James 👌🏼🏴👍🏼
Cheers Rob!
Genius!! Simple and effective... Keep these nuggets coming guys.
Love the two min tips
Listen Roger I’m going to level with ya..........
The skill builder team is full of brilliant people with fantastic ideas. Top marks mate 👍
Cheers Tyler👍
Brilliant advice. More like this 👍🏻
Thanks lads. Learnt something. Lovely 👍
Simple. Practical. Works. Awesome.
Such a simple trick....how do we not all know this!
Every day is a learning day.
Great tip will use that going forward
First site I have watched this week that said the right fall . Been Installing drains 40 years 1 in 40 sewage well done.
Cool, how many turns allowed for the pipe until it gets to manhole
@latvijasruna2719 generally one
Generally one but you can have more with rodable access
Don't know about regulations in the UK, but when I learned this in the USA, the code was 1/4 inch per foot min, max 3 in per foot or vertical. So there actually is a bit of fudge room in the code.
Personally, the first bend in my index finger is about right for a 1 in 40 slope on a meter level, so I can just put my finger at the end of the level at that point to get slope on a pipe. Repeat measurements on down the pipe one meter at a time. No tape or blocks of wood needed. But that is just how I do it. And for me, the exact slope is not critical (as long as it is within code) but that there are no dips are valleys in the pipe along the path. But how doing that is another topic (there are also easy ways to get that, especially on longer pipe runs).
Ah the finger tip or tip of the finger. Very good. I will measure mine. As you say a bit more is not an issue so long as it isn't crazy.
Brilliant tip. Been wondering how to do this for when I lay my new patio in the spring. 👍👌
Why didn’t you do this video last month! When I needed it haha
Another good n James , with Roger heckling in the background 😁. ......Big Job broke out there .? 🤔🧱👍🏼
Cheers boys, I like the new logo!!! Yeah, onto a new big job, filming has already started. Here’s a little teaser for you - Blake’s profiles are involved and I know how much you boys like them😉
@@jimichip Cheers James we are well chuffed with it , we almost look professional now 😆.
Look forward to the new project ..... excellent profile choice 😉🧱👍🏽
Great 2 mins of value No BS. Thanks
level manufacturers could put another set of lines outside the ones for level that registered the pitch for the self clean
Good tip, guys.
Given that there are 39.37 inches to a metre, a quick ready reckoner for 1 in 40, if you pardon the mix of systems, is - 'an inch a metre' - which can be useful.
thanks 👍
Beat me to it
Excellent! Thanks for the great tip!
Great tip for my project.
Nice to see James looking happy after visiting Dulux or is he still pissed about the trade price 👍👍
James is over it. If it hadn't been for the video he wouldn't have bothered going to Slough
Thanks for the tip once again excellent video
Awesome tip 👍
Nice tip 👍
Great tip!
Nice tip mr.James King thank you kind sir.
Love the tips keep em coming
Great tip, thanks 👍
That's a heck of a good tip, thanks for that
Nice tip! 👍 Out of interest, I was always taught that if you have (in old money) a 4” pipe it required a 1 in 40 fall, 6” pipe - 1 in 60 and 9” pipe - 1 in 90.
Thank you very for the video. I'm not in the this kind of trade, but there are a lot dishonest people in my place. I'm not here because I want to build my house myself, but your video help people from being cheated. I wish your business success.
Great tip, Cheers 🍻
Remember being taught about self cleansing velocity at NESCOT.
Interesting that Roger in the background says a fall of 1 in 200 for the patio. If my history serves me right, that's the fall Joseph Bazalgette laid his London sewage system to after the 'Great Stink' and when London was plagued with cholera.
As for gin and tonic. Revolting drink, best place for it is on the patio.
I went to NESCOT too! Although it was for carpentry and joinery.
Neil
Actually I looked it up and the industry standard for domestic patios is 1 in 80, If it is commercial paving then it is 1 in 60. 1 in 200 would be slow to drain in a storm but a lot of paving is now laid as water permeable. There is a good video coming up on laying paving
Nice one ✌💪
Brilliant thanks 😊
Great tip. I'm just laying a patio, standard fall is 1 in 80. I could have used this idea. Funny thing too is I'm drinking gin and tonic now, not on the patio though, it's too cold and it's not finished 😁
Not finished, it's g&t on the rocks then.
For patio, I usually just lay with the bubble touching a line (Every level is different). That way you can use the straight edge for across and diagonal as normal.
@@vic6820 😆😆
I have a concrete floor in the garage and just outside the garage door lies the man hole cover. What i would like is to put a kitchen sink waste under the floor as i cant use wall mounted waste pipework as were insulating the walls with dot n dab kingspan so cant loose space. Would i need to use 4" pipework in the garage to connect into the manhole waste.
That's cool!
So simple, bit of maths and a bit of wood. Excellent tip.
Thanks that’s great = all the best your the man
Fab I have some rain water drain to do so I can do that as and 80 or 100 fall.......was wondering how to measure the fall...thanks for that
Does the length of the level matter when. Setting this trick up?
Here in Denmark the fall is a little shallower at 20mm per 1meter run for Dn 110 drainage pipe. So instead of a 45mm block we would have a 36mm block on an 1800mm spirit level.
Interesting. We all do things a little differently.
Maybe you have less sticky poo....😂😂
Very useful thanks.
Brilliant idea boss
I'll never use this but it's pretty ingenious. The simplest hacks are the best.
Brilliant
Hi mate, thanks for the great video, I just want to ask you if there is a building regulation that stipulates what the fall should be on a patio?
or is anything between 1 in 60 to 100 ok?
Many thanks Chris
Great tip fella's, thank you.
So, does this mean that gin should be drunk sitting up, reclining or laying down. Or is that just a consequence as my London Dry gets drained. Stay safe and well :)
Good tip
Love it - cheers
Just the info l needed brilliant
Great tip👍 knew about the level thing but not the calculation. For instance if you can’t get a 1-40 as levels to existing drain wouldn’t permit, would a 1-80 be acceptable, Or is that too slow?
Exellent idea by putting a block under 1800mm spirit level , indeed a top tip. Thank you
Nice tip, I'm doing a self build and sorting the soil pipes now. The current UK Regs are a fall of 1 :40 to 1:110. I worked out that equated to an angle of 1.43° to 0.52°. My laser measure has an angle finder on it, just lay it on the pipe and check its within range.
This is why you should stick to the office 🤣🤣🤣🤣
Who uses a laser level for drainage?!
@@InstantSleep I designed and built an annex myself with no experience and have passed all the building inspections whilst running my company from my home office. I used a tool I already own to very quickly check drain falls.
Superb.
How did you get the 40 that is divided by the length of the spirit level 1800mm?
You’re genious!
Awesome thanks Chap's
Perfect thank you
Fantastic tip! Thanks SB & James! Does this calculation also work for smaller spirit levels? Say a 1200 spirit level? So would you do 1200/40 if the fall you want is 1 in 40?
Yes
It does Manish, just divide the length of your level in millimetres by 40 and the answer is the size of block that you require. So in your case 1200/40 = 30mm block.
correct
What does the 40 represent?
40° deg angle?
a ratio. 1 mm fall in 40mm linear
perfect thanks man
For the patios always use the bricklayers level, bound to be out !!!
😂 good one!
I think their levels work okay, problem is they would keep saying that they will get the level back on the next slab.
@@TurinTuramber we use lasers to mark a datum so there not normally out of level on the next slab lol plus our ribbed stabilas are good than most levels
@@kierenboimufc5940 No doubting the greatness of the laser levels and profiles. The older brickies used to grind and bump courses, probably not as common these days.
@@TurinTuramber still have to doit the frames we have on site come up 10 mm plus in gauge so have to bump plus do a lot of bump and grinding in footings
Question - So over a distance of 13m - 13000 / 40 = 325mm Min fall. 13000 / 110 = 118mm Max fall. I sometimes don't see the wood for the trees. But the Max fall is less than the Min??
Help??
I'm wanting to drop some soil pipes down through a pot and beam floor into a new build house with a un-supported basement. I am going to suspend the pipes on brackets attached to steel work in the basement roof which the house is being built on. I want the pipework to only drop as little as i can get away with so that the pipework does not get caught by higher vehicles which at the moment are spec'd to fit through the entrance door to the basement / car park area. i have 13000mm distance for the pipe to travel to get it outside the building. Over 13000mm is the fall at 1 in 110 = 118mm?
Pipes with larger diameters require less of a fall than smaller pipes.....ie 4" pipes = fall of 1:40.....9" pipe = 1:90.....because there is a larger volume of water in the larger pipe it can be laid shallower.
They call it murfeys law,1in 40 for 4” pipe and 1in 60 for 6” pipe and when you work on drains and manholes it’s always time and a turd.
Would I do the same for a short run? I have a 1.2 meter run and a 600mm level. Would I just divide 600 by 40? Sorry for the simple question I just want to make sure i do it right!
yes it will work fine
Yet another short to the point top tip! Love it guys! Is it me or are the tips like this where is so simple make you wanna kick yourself for not thinking of it first??
Thanks to his bottom right hand corner accent( ie the South East of UK) he seemed to say 'a 1 in 44' whereas he actually said ' a 1 in 40 fall'. People brought up in the left hand corner of UK would understand the importance of a pronounced 'r' or 'rrrs'.... or even perhaps ...'arse'!
It is amazing how differently we all speak
Thanks
Nice tip. I wonder how the Romans did it with the acqueducts over those great distances.
Good question! We will send James to find out. He could do with a holiday.
Roger is old enough to remember them laying the foundation 😆
They used water levels
Is back of the bubble about 45mm on 1800? That's what I've tended to use tbh and it still looks good on a G and T, unless of course someone has tried to have a shit on the patio, then nothing looks good.
great 1 minute tip
All tips welcome. It Could take a professional a life time to come up with a tip and two minutes to learn it so always ears and eyes No matter how big you are in your game
Very true! Thank you. 🤔
Great tip. All important gin-related caveats discussed 👍🏼
Nice trick! It’s fool proof.....
so how do you work out a 1 in 20 fall? apologies for being slow😅 but using an 1800 level is that not 1.8 in 40 ? im lost with the calculation..say if the level was 1m long is it just a 20mm block id need ?
1000mm divided by 40 = 25mm
im talking about how do you calculate 1 in 20 fall for a patio? I understand 1000 ÷ 40 would be a one in 4 fall
very smart
just tape blocks of wood to the patio table legs. This is a great little video and no messing, 1000 level = 25mm 1200 level = 30mm block of wood.
I brought a small 8" level that has 2 bubbles in the middle 1 is for level and the 2nd bubble has numbers on in 1-5 so 1 is 1 in 10 and 2 is 2 in 10 pitch and so on so no need for the block check it that way
Always use the pipe laser and target but still double check with that as with higher temperatures the laser can wonder around a bit plus it's got a magnetic strip at the bottom so you can either leave it hanging out of a pocket or stick it to the trench box and keep moving it along with you
Was a fairly cheap tool but worth it's weight in gold to me as a tool of my trade
Great tip, so if I am doing surface water I can go for a 1 in 100 which would be 18mm on a 1800mm level.....
It doesn't matter. If you can get more fall go for it but if not go for 1 in 100
@@SkillBuilder Thanks for that!
Remember doing Maguire’s rule during my college days, 45 years ago.
Yeah 3 cans then on the head.
Yes so do I but 60 years ago. 4in pipe 1in40, 6in pipe 1in 60, 9in pipe 1 in 90
@@robertsullivan2396 I didn’t know there was a difference 👍🏻
Do this a lot actually. Works on the vertical of course, good for setting velux splays perfect. Also put a either end is good for leveling coping stones.
Good tip
Very clever tip this…..
1:29
That’s all I needed to know
Brilliant tip. I could have been doing with this when putting garden drainage in earlier this year.
I've been along some drivers in Uganda and 1 in 40 ain't steep. There have been times I wondered if we'r would make it to the property 🤣.
I never actually realised the drop was so shallow for a drain.
Was doing this once and my neighbour tried to lend me his spirit level cos he thought mine was broken........
Roman's been doing this for centuries !
I knew Roger was a G&T man!!. Chin,chin...
Not me mate, I hate the stuff.
@@SkillBuilder Ah, sorry, meant to say beer. Cheers.
Basically it's a 1" per metre fall as 1 metre is as near enough 40 inches, so tape a 1" block to a 1 metre level, job done😁
I really enjoy seeing James at work, really seems to know his stuff.
Either that or he is very good at faking it
Skill Builder 🤔🤔🤔 I wonder!?!
@@SkillBuilder 😂😂
I tried this but had the block at the wrong end 🤦🏻♂️🤦🏻♂️🤦🏻♂️🤦🏻♂️🤦🏻♂️
@@shaunthompson8943 yes house is now full of shit 🤣🤣
The 1 in 40 for 4" , and 1in 60 for 6" was a rule of thumb used for salt glazed pipes over 50 years ago . The Building Regs only state a "self Cleansing fall of 1.2 m/sec " .not gradients. In practice you have a start level and a finish level and if you can make it fit and work , no questions will be asked . Very soon Roger will get fed up with me . Just tell me when I am wrong