Can't seem to find any perforated pipe online at b&q, wickes or screwfix. Should the holes in the pipe be on the bottom. I presumed they would by facing upward but I've just read an extensive French drain guide and they suggest having them facing downward.
From what I have read, solid pvc is preferential to this stuff as there is less chance on clogging and blockages. how would I go about making the joints for the side vents on the herringbone though, is there specific joints /fittings for this?
This Co would seem to provide everything you need - pipe / connections etc etc. The perforated type shown is for land drainage so would seem to suit your application but I'm no expert.
This Co would seem to provide everything you need - pipe / connections etc etc. The perforated type shown is for land drainage so would seem to suit your application but I'm no expert.
well I am planning on starting this morning, I'm going to dig the trench at the bottom and hire a skip. Should I line the trench with anything do you think? Depending on how hard going it is I may look at hiring a petrol trenching tool aswell.
I wouldn't line the trench. it'll just inhibit the water getting away. Holes on the bottom make sense - you don't want to stop the water permeating out of the bottom of the trench if that's where it wants to go, other than in the first few meters next to your house (which I assume you're not touching anyway). You're not trying to control WHERE the water goes underground - you're just trying to get it underground rather than on the surface. As long as 'down' is away from your house, it doesn't much matter where under the garden it goes.
Gardening on the edge of Exmoor, in Devon
“It's still magic even if you know how it's done.”
Quick update everyone, I'm digging in the garden! At the bottom of my garden to the left is a raised patio, edged with paving slabs on their sides. As you can see in the pics, under this patio is covered in rubble, hardcore and bricks. I now plan on making this where my hole is going to be as I want rid of this area any way l. I'm going to dig all the stuff out and feed my pipe into this hole then cover it back over with all the crushed bricks and rubble
No way of knowing. Depends how much soil has got mixed in. Try it? If you end up with a permanent pond there you may have to revisit but if it works you'll have saved yourself a lot of effort.
As long as you know how you can get back to do it later if it doesn't work out, without having to redo everything else as well?
Last edited: 09 November 2016 13:58:28
Gardening on the edge of Exmoor, in Devon
“It's still magic even if you know how it's done.”
Posts
Can't seem to find any perforated pipe online at b&q, wickes or screwfix. Should the holes in the pipe be on the bottom. I presumed they would by facing upward but I've just read an extensive French drain guide and they suggest having them facing downward.
You need to go to a specialist drainage supplies company or theres always eBay of course. Lots on there.
Last edited: 08 November 2016 21:07:00
EBay example
http://www.ebay.co.uk/itm/Fully-Perforated-Twinwall-Drainage-Pipe-3m-lengths-sizes-150-225-300mm-/111958963439?_trksid=p2141725.m3641.l6368
From what I have read, solid pvc is preferential to this stuff as there is less chance on clogging and blockages. how would I go about making the joints for the side vents on the herringbone though, is there specific joints /fittings for this?
This Co would seem to provide everything you need - pipe / connections etc etc. The perforated type shown is for land drainage so would seem to suit your application but I'm no expert.
https://www.plastics-express.co.uk/land-drainage/60mm-land-drainage
well I am planning on starting this morning, I'm going to dig the trench at the bottom and hire a skip. Should I line the trench with anything do you think? Depending on how hard going it is I may look at hiring a petrol trenching tool aswell.
I wouldn't line the trench. it'll just inhibit the water getting away. Holes on the bottom make sense - you don't want to stop the water permeating out of the bottom of the trench if that's where it wants to go, other than in the first few meters next to your house (which I assume you're not touching anyway). You're not trying to control WHERE the water goes underground - you're just trying to get it underground rather than on the surface. As long as 'down' is away from your house, it doesn't much matter where under the garden it goes.
“It's still magic even if you know how it's done.”
Quick update everyone, I'm digging in the garden! At the bottom of my garden to the left is a raised patio, edged with paving slabs on their sides. As you can see in the pics, under this patio is covered in rubble, hardcore and bricks. I now plan on making this where my hole is going to be as I want rid of this area any way l. I'm going to dig all the stuff out and feed my pipe into this hole then cover it back over with all the crushed bricks and rubble
Would I just be able to feed my pipe into this area without digging all the rubble out
No way of knowing. Depends how much soil has got mixed in. Try it? If you end up with a permanent pond there you may have to revisit but if it works you'll have saved yourself a lot of effort.
As long as you know how you can get back to do it later if it doesn't work out, without having to redo everything else as well?
Last edited: 09 November 2016 13:58:28
“It's still magic even if you know how it's done.”