Tree Roots in Plastic Pipes
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Pumped Foul Drainage is somewhat easier as the flow tends to be more even, and a suitable chamber can be provided, which is allowed to fill to a certain level before the Pump(s) kick in and remove the product down to a predetermined level, before switched off until level rises once more. Rainwater is more awkward as it's never an even flow, in times of heavy rain, even the biggest chamber could be overwhelmed.
Soakaways do have a limited lifespan, then can silt up, the surrounding ground becomes utterly waterlogged and wont accept any more water, but if you've done a successful percolation test you may stand a chance. I'd suggest oversizing for what you need, and look at the Crate type soakaways, built properly they provided a substantial area to accept the water, before it percolates into the surrounding soil.
Soakaways do have a limited lifespan, then can silt up, the surrounding ground becomes utterly waterlogged and wont accept any more water, but if you've done a successful percolation test you may stand a chance. I'd suggest oversizing for what you need, and look at the Crate type soakaways, built properly they provided a substantial area to accept the water, before it percolates into the surrounding soil.
Yes, I saw that after I posted, hence deleting. I don't know whether moving the centre downpipe to the other side of the door (and falling the gutter the other way) would work, with the horizontal section below the render on the gable end. Bay is so small it could probably just discharge into a basic soak away or a length of land drain buried across the
lawn, or even the existing drain if the load from the roof is diverted.
Just get a load of single socket bends, tees etc from Screwfix and return what you don't need.
Looking at the airbricks it looks like there's a suspended floor so you could possibly run a 110mm soil pipe across but you'd have to dig up both gulleys.
Looking at the airbricks it looks like there's a suspended floor so you could possibly run a 110mm soil pipe across but you'd have to dig up both gulleys.
Hi @cdbe
I've altered the gutter and downpipes - all seems to be flowing OK.
The pipe is very close to the bottom of the gas fire flue because I needed some height to get it into the branch at the far end. They only make 112.5 deg branches.
Assume if gas fire used it would melt the pipe? We don't use it currently.
With the bay downpipe, in fairly heavy rain the other day it was only a trickle. Could I lift the paving and run a piece of underground pipe from the gulley over to rocks/flower bed, leaving the end of the pipe open and above ground? See red line in last pic.
That way the tree roots won't interfere with it and I won't have to make a soakaway etc? Thanks
I've altered the gutter and downpipes - all seems to be flowing OK.
The pipe is very close to the bottom of the gas fire flue because I needed some height to get it into the branch at the far end. They only make 112.5 deg branches.
Assume if gas fire used it would melt the pipe? We don't use it currently.
With the bay downpipe, in fairly heavy rain the other day it was only a trickle. Could I lift the paving and run a piece of underground pipe from the gulley over to rocks/flower bed, leaving the end of the pipe open and above ground? See red line in last pic.
That way the tree roots won't interfere with it and I won't have to make a soakaway etc? Thanks
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Well you seem to have proved the concept. I think I'd go below the render - although the fall is less, it would likely be ok - you seem to have a nice continuous length of pipe and could seal the left hand corner joint with silicone if necessary (i.e. it drips a bit). Use a flexible coupler to get into the gulley. Regarding the bay, maybe what's left of the existing drainage system could cope with the small amount of discharge but otherwise it would be fine running across and could easily be fed into a length of land drain if it ponds there.
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Once upon a time you could have gone down to the Labour Exchange, approach people who looked fit and strong, and offered the digging job for cash..
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I had the opposite - dug a pit and it filled with water itself, and it did not drain away. That was a February, after the driest start to the year for 150 years.
I would not expect it to do that, any heat from it will rise anyway.
Hi @cdbe @Hugh Jaleak
I've lifted some flags around the bay gulley. They're laid on a bed of 2" thick concrete.
I dug out round the front of the gulley, there were some bricks under there. The ground is absolutely sodden.
The clay gulley with dish has a rubber connector that goes to a clay ptrap which runs to the left (see pic).
I want to cut a 6m length of 110mm plastic underground pipe to say 5m and run it under the flags into the rockery at the front. The pipe end can be left overground/open to keep tree roots out. Add some mesh to avoid rodents then hide with plants. Does that sound/look like it would work? Hard to tell but the rockery is at a lower level than the house (see pics).
The trench will be 400mm wide, pipe bedded in 10mm pea gravel, how much pea gravel would I need? Is a 1:40 fall OK?
Would you reuse the clay gulley? Or fit a bottle gulley? The downpipe is offset to the right a bit.
In terms of reinstating the flags - can I add 2" of concrete back into the channel I'll cut, how do I get the flags to stick?
Total novice so would massively appreciate the advice, cheers. The gutter alterations are working fine! thanks.
I've lifted some flags around the bay gulley. They're laid on a bed of 2" thick concrete.
I dug out round the front of the gulley, there were some bricks under there. The ground is absolutely sodden.
The clay gulley with dish has a rubber connector that goes to a clay ptrap which runs to the left (see pic).
I want to cut a 6m length of 110mm plastic underground pipe to say 5m and run it under the flags into the rockery at the front. The pipe end can be left overground/open to keep tree roots out. Add some mesh to avoid rodents then hide with plants. Does that sound/look like it would work? Hard to tell but the rockery is at a lower level than the house (see pics).
The trench will be 400mm wide, pipe bedded in 10mm pea gravel, how much pea gravel would I need? Is a 1:40 fall OK?
Would you reuse the clay gulley? Or fit a bottle gulley? The downpipe is offset to the right a bit.
In terms of reinstating the flags - can I add 2" of concrete back into the channel I'll cut, how do I get the flags to stick?
Total novice so would massively appreciate the advice, cheers. The gutter alterations are working fine! thanks.
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If nothing wrong with Gully, reuse, just need a Supersleve to plastic adaptor. 1:40 fall will be fine, can go less if you like as only water running through. 1:40 is for foul drains where you need the water to carry the solids along with it.
Peagravel, I'd get a tonne bag, it doesn't go as far as you think, and small bags are an expensive way of buying it.
Flags will be a bugger to relay on that solid base, I'd be inclined to break at least the top inch or so off, then relay the Flags on some sharp sand. Mind your back!
Peagravel, I'd get a tonne bag, it doesn't go as far as you think, and small bags are an expensive way of buying it.
Flags will be a bugger to relay on that solid base, I'd be inclined to break at least the top inch or so off, then relay the Flags on some sharp sand. Mind your back!
Hi @Hugh Jaleak an adapter like this https://www.wickes.co.uk/Fernco-Drain-Coupling---100-115mm/p/137218 ?
Does it need any kind of trap or no point? Assume I at least need a bend?
Thanks!
Does it need any kind of trap or no point? Assume I at least need a bend?
Thanks!
Wont need a Trap unless connecting to a foul or combined sewer. If you can get the gulley free with the outgoing trap and bend still intact, then cut off the collar on the outlet, swap for a clay to plastic connector and carry on in plastic pipe. The Coupling you've linked to should be fine.
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