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Drainage Issue

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LAlawnnut
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Drainage Issue

Post by LAlawnnut » Thu Mar 14, 2019 11:09 am

Hey guys,

I figure this will be the best place for help with this. I have clay and it will hold water/stay soggy for days after it rains in the summer and is very hot and has currently been wet since roughly October since it hasn’t really warmed up to help it dry up. I am looking to add some surface drains thinking that would help but what other things can I do to help? I know it is compacted because my centipedes roots won’t go deeper than roughly a half inch or so.

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Suburban Jungle Life
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Re: Drainage Issue

Post by Suburban Jungle Life » Thu Mar 14, 2019 11:45 am

You could try air8, penterra, or some other kind product to aid in water penetration. That might help it to dry out some. You could install a drainage system to carry water away. You could core aerate multiple times, collect the cores, and backfill and topdress with sand to aid in a drier surface.

Personally, I'd try air8 first as the cost and labor is low. 2 apps at 9oz/M one month apart. It's worked well for me but I'm sure results depend on soil type and composition.

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Re: Drainage Issue

Post by LAlawnnut » Thu Mar 14, 2019 2:23 pm

Have you seen results of Air-8 on clay? I have done some searching but can’t seem to find much

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Re: Drainage Issue

Post by pintail45 » Thu Mar 14, 2019 2:39 pm

My dad lives outside of Beaumont and has similar soil (used to be a rice field). I'm currently experimenting with Air8 and RGS but it's too early to tell. Hope to have some updates in the coming months.
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Re: Drainage Issue

Post by viva_oldtrafford » Thu Mar 14, 2019 3:14 pm

surface drains and slit trenching would help out immensely.
Last edited by viva_oldtrafford on Thu Mar 14, 2019 3:14 pm, edited 1 time in total.

LAlawnnut
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Re: Drainage Issue

Post by LAlawnnut » Thu Mar 14, 2019 3:51 pm

viva_oldtrafford wrote:
Thu Mar 14, 2019 3:14 pm
surface drains and slit trenching would help out immensely.
What is slit trenching?

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Re: Drainage Issue

Post by viva_oldtrafford » Thu Mar 14, 2019 3:57 pm

LAlawnnut wrote:
Thu Mar 14, 2019 3:51 pm
viva_oldtrafford wrote:
Thu Mar 14, 2019 3:14 pm
surface drains and slit trenching would help out immensely.
What is slit trenching?
Just cutting a trench in the turf (depth and width varies - impact is greater with deeper and wider) removing the native soil, placing perforated pipe at the bottom (holes to bottom of trench), place sand back in the trench.

It’s a popular pratice in the golf industry and it’s very successful. I’ve done a few with fantastic results.

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Re: Drainage Issue

Post by LAlawnnut » Fri Mar 15, 2019 12:46 pm

The guy before me tried something similar and the clay clogged up the holes and had to be taken out so my surface drains were going to be solid pipe instead

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Re: Drainage Issue

Post by viva_oldtrafford » Fri Mar 15, 2019 1:04 pm

LAlawnnut wrote:
Fri Mar 15, 2019 12:46 pm
The guy before me tried something similar and the clay clogged up the holes and had to be taken out so my surface drains were going to be solid pipe instead
It should clog it up, that’s why it’s important to remove the native soil and replace with sand. You can wrap the pipe in a sock if you’d like to.

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Re: Drainage Issue

Post by LAlawnnut » Fri Mar 15, 2019 1:06 pm

Will the clay not work it’s way through the sand with the water

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Re: Drainage Issue

Post by viva_oldtrafford » Fri Mar 15, 2019 1:16 pm

LAlawnnut wrote:
Fri Mar 15, 2019 1:06 pm
Will the clay not work it’s way through the sand with the water
Hard to say how much, if any. You’re basically creating a channel in the clay (depth and width up to you). The clay is probably too solid to affect the drain pipe. I’ve ran trenches in heavy clay soil and the trenches are still in use today. In fact, that’s how sand bunker drainage is built - no clay has every clogged our pipe.

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Re: Drainage Issue

Post by LAlawnnut » Fri Mar 15, 2019 1:21 pm

viva_oldtrafford wrote:
Fri Mar 15, 2019 1:16 pm
LAlawnnut wrote:
Fri Mar 15, 2019 1:06 pm
Will the clay not work it’s way through the sand with the water
Hard to say how much, if any. You’re basically creating a channel in the clay (depth and width up to you). The clay is probably too solid to affect the drain pipe. I’ve ran trenches in heavy clay soil and the trenches are still in use today. In fact, that’s how sand bunker drainage is built - no clay has every clogged our pipe.
So dig a trench fill with sand place perforated pvc on top backfill with sand and that’s it

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Re: Drainage Issue

Post by viva_oldtrafford » Fri Mar 15, 2019 1:23 pm

LAlawnnut wrote:
Fri Mar 15, 2019 1:21 pm
viva_oldtrafford wrote:
Fri Mar 15, 2019 1:16 pm
LAlawnnut wrote:
Fri Mar 15, 2019 1:06 pm
Will the clay not work it’s way through the sand with the water
Hard to say how much, if any. You’re basically creating a channel in the clay (depth and width up to you). The clay is probably too solid to affect the drain pipe. I’ve ran trenches in heavy clay soil and the trenches are still in use today. In fact, that’s how sand bunker drainage is built - no clay has every clogged our pipe.
So dig a trench fill with sand place perforated pvc on top backfill with sand and that’s it
Yes. Tie in your drains too.

This is a very large scale. But same concept.


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Re: Drainage Issue

Post by Jacob_S » Fri Mar 15, 2019 5:14 pm

I've got one major problem area and plan on what @viva_oldtrafford mentioned I've researched it as infiltration trenches too.

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Re: Drainage Issue

Post by adgattoni » Fri Mar 15, 2019 7:24 pm

This guy makes his french drains absolutely massive. I bet it comes at a steep price though.

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Re: Drainage Issue

Post by KHARPS » Sat Mar 16, 2019 7:14 am

adgattoni wrote:
Fri Mar 15, 2019 7:24 pm
This guy makes his french drains absolutely massive. I bet it comes at a steep price though.
I’ve been watching that guy’s videos the last few years. Great resource if you’re going to take on a drainage project yourself.

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Re: Drainage Issue

Post by Crabbychas » Sat Mar 16, 2019 8:46 pm

Infiltration trenches, french drains, slit trenches, are all the same. When building french drains you want to have pipe that is perforated on only one half of the pipe and when you lay the pipe you face the side with the holes down. This way the only sediment that can get in is small enough to be carried by the water and it theoretically prevents the pipe from becoming clogged with sediment.
The way I was taught to spec them was to dig the trench, place geotextile fabric, put down a couple inches of rock, then place the pipe, cover it with a couple more inches of rock, wrap the geotextile fabric around the pipes and rock and overlap to prevent sand from getting in, then cover it with sand.
When we designed a house that needed extra drainage because it was on a small lot and/or we couldn't properly store the stormwater in swales under the houses, we would basically build a huge french drain under the driveway - but instead of pvc we used 2-3ft diameter perforated culvert pipes buried 2 feet lower than the footing that all the gutters, patio drains, etc. ran to.

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Re: Drainage Issue

Post by Mightyquinn » Sat Mar 16, 2019 9:32 pm

You might want to check this out if you plan on using geo fabric in clay soils. He has a ton of other videos out there too!
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As surely as Water will wet us, as surely as Fire will burn,
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