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French drain system

Posted on 2/27/24 at 7:51 am
Posted by bubba102105
Member since Aug 2017
441 posts
Posted on 2/27/24 at 7:51 am
Has anyone put in a french drain system using the NDS pipe with the fake rock and sock around it already vs the gravel and pipe? I have about 125-150ft run I need to do. One contractor said he's been using the NDS style with no issues for years. Definitely a cheaper option as well given less labor but want to make sure I get something that will work long term.
Posted by WB Davis
Member since May 2018
2052 posts
Posted on 2/27/24 at 1:57 pm to
Eager to know anyone's real-world experience with that NDS "EZ-Drain" stuff.

I hear it's no good for soils with clay and fine silt, and has real problems if you've got a high water table.

A lot of proprietary drain pipe 'advancements' eventually turn into unmitigated shite-shows. Examples include Orangeburg pipe, Infiltrator septic field lines, etc.

I'd approach any proprietary pipe product with caution.


Posted by Daponch
Da Nortchore
Member since Mar 2013
996 posts
Posted on 2/27/24 at 5:35 pm to
I’ve heard of some contractors having issues with it floating. I’d stick regular sock pipe and road gravel
Posted by Harlan County USA
Member since Sep 2021
537 posts
Posted on 2/27/24 at 6:36 pm to
Just dig a ditch.

We hired a company to dig out behind our retaining wall and put in a system like that with 2 catch basins and two runs of pipe. The issue is my neighbors property is higher ground than mine and alot of water comes off his driveway down my bank and was running over my retaining wall and flooding our yard. The pipe system didn't do shite. The water didn't find it's way into the pipes and nothing pushed it in the direction it should've went. The water went down further behind the wall and was pouring out of the bottom of the wall. I solved all that buy pulling out that crap system and poured me a concrete ditch running to the back of the property.
Posted by StrikeIndicator
inside the capital city loop.
Member since May 2019
441 posts
Posted on 2/27/24 at 9:48 pm to
Old school as well. Built my own block catch basins. I actually enjoyed it bc it doesn’t have to be pretty, just functional.
Posted by Cdawg
TigerFred's Living Room
Member since Sep 2003
59443 posts
Posted on 2/28/24 at 10:30 am to
I use it all the time but only in certain situations. First question is what is the 125-150ft for? Is it collecting gutters, draining paving areas, draining a low spot, etc.?





Posted by bubba102105
Member since Aug 2017
441 posts
Posted on 2/29/24 at 8:05 am to
Area house is on is built up about 2ft above lower yard. The point where the upper yard drains into the lower yard stays saturated much longer than one would hope. Metal roof with no gutters so that water is being distributed all along the entire run. It's probably more of a grading issues, but we're talking about 2.5 acres in all, so french drain the cheaper options vs grading it all out correctly.
Posted by crewdepoo
Hogwarts
Member since Jan 2015
9583 posts
Posted on 2/29/24 at 11:39 pm to
I've used those for smaller segment. I think it would work but I would add a few catch basins to the system where water tends to stand
Posted by Reubaltaich
A nation under duress
Member since Jun 2006
4964 posts
Posted on 3/21/24 at 6:11 am to
I need about 50 foot to install by the side of my home. Water is coming down a hill, about a 5-8 degree slope. Soil is somewhat sandy.

I have some apprehension about this system mentioned in the OP.

Just wondering should go with the traditional method of a French drain system or go with the NDS pipe?

TIA
Posted by FlyinTiger93
Member since May 2010
3576 posts
Posted on 3/21/24 at 7:13 am to
Any flex pipe is garbage. Do it right with perforated pvc, and wrap it with geotex fabric. Corrugated is not durable long term, and will lift or sag as conditions change.
Posted by Reubaltaich
A nation under duress
Member since Jun 2006
4964 posts
Posted on 3/21/24 at 8:08 pm to
quote:

Any flex pipe is garbage. Do it right with perforated pvc, and wrap it with geotex fabric. Corrugated is not durable long term, and will lift or sag as conditions change.


Yep, I looked at some of that stuff at Home Depot, looks pretty flimsy and not well made.

PVC perforated pipe looks like the way to go. I priced 4" PVC pipe out at 25 dollars for a 10 foot piece.

River rock, what size? Reading on it, 1" seems to be the standard.

A 50 foot run about 12" wide and 12" deep should need about 15-16 cubic yards of gravel?

Hardest part seems to be digging the trench. Thinking about renting a mini excavator for a weekend and do some other dirt work around the ole homestead.

This the biggest thing:

What is the best method to determining where I should put the French drain?


Posted by AyyyBaw
Member since Jan 2020
1056 posts
Posted on 3/22/24 at 5:52 am to
I’d put it wherever the most water holds after a good rain. Our home is currently being built on a 32” pad above normal grade. I’ve been collecting and hauling as much dirt as I can find for free or a good price for grading as soon as it dries up. See how much it would cost for dirt and grading. We got free dirt when the parish dug the ditches. Maybe you have a friend with a tractor? Grading will also give you a more gradual slope where pad meets yard. Are you planning to run drains to discharge into a ditch?
Posted by jennyjones
New Orleans Saints Fan
Member since Apr 2006
9309 posts
Posted on 3/22/24 at 8:40 am to
quote:

A 50 foot run about 12" wide and 12" deep should need about 15-16 cubic yards of gravel?


You sure? 15-16 cubic yards is a lot of gravel

Based on your numbers above, you should only need 1.85 cubic yards
LINK
Posted by Reubaltaich
A nation under duress
Member since Jun 2006
4964 posts
Posted on 3/23/24 at 5:15 am to
quote:

Maybe you have a friend with a tractor? Grading will also give you a more gradual slope where pad meets yard. Are you planning to run drains to discharge into a ditch?


I have a slight grade at the back of the house. Buddy that has a backhoe built a dirt berm on the backside and it stopped the water flow. Also, built a berm on the side but didn't go high enough, this is where the water is coming in at.

Gonna get out there this weekend with a shovel and wheelbarrow and build up the berm some more on the side.
Posted by Reubaltaich
A nation under duress
Member since Jun 2006
4964 posts
Posted on 3/23/24 at 5:41 am to
quote:

You sure? 15-16 cubic yards is a lot of gravel Based on your numbers above, you should only need 1.85 cubic yards LINK


I was thinking about square yards, not 'cubic' yards.

I could only imagine the look on the wife's face with about 15 loads of gravel on the back-40. Talk about being in the dog house. Not to mention the huge bill and with my butt in the back spreading that stuff around.
Posted by Tree_Fall
Member since Mar 2021
477 posts
Posted on 3/23/24 at 8:21 am to
My limited experience is that French drains are not much use when SoLa days of heavy rain leave water that stands for days. Installed catch basins at two lowest points and ran buried 6" pipe to an adjacent large ditch. Clears the yard very fast...catch basins in lawn are not pretty.

With all drainage solutions you must have some nearby low place to receive the water. Worse scenario is needing a collection area and a sump pump to pump water out to street drains.
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