Hi! I’m a DIYer and have a problem I’ve not seen covered in any of your videos. I’m installing a paver walkway and to deal with the poor drainage in my yard, I’m installing a channel drain alongside the walkway. I’ve excavated 8 inches to make room for 5-2/3 inches of 3/4” washed stone and 1 inch of 1/4” slate chips to go beneath the 2-1/3” pavers. Likewise, I’ve excavated 14 inches for the 6”-deep channel drain that will sit atop 4” of concrete that itself will sit atop 4” of 3/4” crushed stone. The problem is, the soil underneath all of this is clay that seems to be completely impermeable. I’ve just finished excavating and noticed that every time it rains, the excavated area fills up with water that never seeps into the earth. The water just sits there like a lake until I pump it out. This suggests that once the crushed aggregate, concrete, pavers and channel drain are installed, rainwater not captured by the channel drain will drip down into the crushed stone and pool up there indefinitely, which can’t be a good thing. How should I deal with this issue?
Is the channel drain against the foundation? If so, I would dig out areas that the water could drain out underneath the walkway. And that channel drain trench should also be following the slope of your walkway so it should be sending water toward a specific area of the walkway and there you would also want to dig out a relief for the water to get out from under there.
@@iamahardscaper Thank you for the speedy reply! The paver walkway I’m installing measures 6 ft x 32 ft and runs next to the garage foundation. The channel drain and concrete border add another 1 ft to the width, making the entire setup 7 ft x 32 ft. But the channel drain runs alongside a fence, meaning the channel is not next to the garage foundation. Additionally, the walkway/channel drain is bordered by a preexisting driveway on one end and a stamped concrete patio in the other. The original flagstone walkway I tore out was completely flat in all directions, so when it rained, water just sat there until it evaporated. I lowered the grade on the fence side so the pavers would slope 1/4” per foot to direct rainwater toward the channel drain. Because the area is essentially flat and I’m stuck with the final paver height established by the driveway and patio, I ponied up the big bucks to buy a commercial grade Dura Slope channel drain system from NDS. The Dura Slope sections are each 4 ft long and have a built-in slope to them. A 4” PVC pipe attaches to the bottom of the deepest section and I’ve used a PVC Wye adapter to attach that pipe to the preexisting corrugated drainage pipe that was connected to the garage’s downspout. The corrugated pipe runs under the driveway to a stormwater collection pond. It sounds like you’re suggesting I cut some drainage channels into the soil beneath the pavers/crushed aggregate so that rainwater that penetrates them flows downhill into the trench below the Dura Slopes, then drains toward corrugated pipe. This would effectively serve as a French drain running underneath the pavers and the channel drain. Is that correct? Thx!
Hi! I’m a DIYer and have a problem I’ve not seen covered in any of your videos.
I’m installing a paver walkway and to deal with the poor drainage in my yard, I’m installing a channel drain alongside the walkway. I’ve excavated 8 inches to make room for 5-2/3 inches of 3/4” washed stone and 1 inch of 1/4” slate chips to go beneath the 2-1/3” pavers.
Likewise, I’ve excavated 14 inches for the 6”-deep channel drain that will sit atop 4” of concrete that itself will sit atop 4” of 3/4” crushed stone.
The problem is, the soil underneath all of this is clay that seems to be completely impermeable. I’ve just finished excavating and noticed that every time it rains, the excavated area fills up with water that never seeps into the earth. The water just sits there like a lake until I pump it out.
This suggests that once the crushed aggregate, concrete, pavers and channel drain are installed, rainwater not captured by the channel drain will drip down into the crushed stone and pool up there indefinitely, which can’t be a good thing.
How should I deal with this issue?
Is the channel drain against the foundation?
If so, I would dig out areas that the water could drain out underneath the walkway. And that channel drain trench should also be following the slope of your walkway so it should be sending water toward a specific area of the walkway and there you would also want to dig out a relief for the water to get out from under there.
@@iamahardscaper
Thank you for the speedy reply!
The paver walkway I’m installing measures 6 ft x 32 ft and runs next to the garage foundation. The channel drain and concrete border add another 1 ft to the width, making the entire setup 7 ft x 32 ft. But the channel drain runs alongside a fence, meaning the channel is not next to the garage foundation.
Additionally, the walkway/channel drain is bordered by a preexisting driveway on one end and a stamped concrete patio in the other.
The original flagstone walkway I tore out was completely flat in all directions, so when it rained, water just sat there until it evaporated. I lowered the grade on the fence side so the pavers would slope 1/4” per foot to direct rainwater toward the channel drain.
Because the area is essentially flat and I’m stuck with the final paver height established by the driveway and patio, I ponied up the big bucks to buy a commercial grade Dura Slope channel drain system from NDS. The Dura Slope sections are each 4 ft long and have a built-in slope to them.
A 4” PVC pipe attaches to the bottom of the deepest section and I’ve used a PVC Wye adapter to attach that pipe to the preexisting corrugated drainage pipe that was connected to the garage’s downspout. The corrugated pipe runs under the driveway to a stormwater collection pond.
It sounds like you’re suggesting I cut some drainage channels into the soil beneath the pavers/crushed aggregate so that rainwater that penetrates them flows downhill into the trench below the Dura Slopes, then drains toward corrugated pipe. This would effectively serve as a French drain running underneath the pavers and the channel drain.
Is that correct?
Thx!
It’s a pro move to include hyperlinks in your quotes to videos explaining the process. You are a pioneer of this Mike!
did i make guru level yet??
@@iamahardscaperguru level is only achieved through instant cash rebates
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Spittin fire!
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LIKE!!
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TH-cam is lucky for have you! Thanks for sharing your knowledge and time with us.
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