To avoid these ads, REGISTER NOW!

Drain tile, 1973 tri-level

andyvh1959

Well-known member
Joined
Feb 15, 2020
Messages
2,590
Location
Green Bay WI
The attached sketch details the cross section of my 1973 built tri-level home. I live on a heavily wooded very sandy soil city lot in Green Bay. Many large mature maple and oaks, in the 120'+ hieght range. In heavy rain events I do get just a bit of water ingression in my office end of the house which is on the ground/slab level along with the foyer and east entrance area. The basement stays dry, no water ingression unless it rains really hard/long, then only minimally as I have good gutters and downspout piping to direct water well out from the house. I know there are tree roots in the drain tile as far as I can feel up into the drain tile. Water does definitely get through, but I have always wondered about cleaning out the remaining feeder roots after I took out at least three large oaks and one maple that were closest to the den end of the house.

I've toyed with the idea of getting access to the drain tile from the SW corner of the house to locate a vertical pipe from the drain tile up high enough to just above grade, with a capped access at the top. From that I could "flood" the drain tile with a chemical solution to clear out the feeder roots every few years. At the dryest time of summer, I'd plug the drain tile in the sump pit, then fill the drain tile access pipe with a chemical solution to clear out any feeder roots. Let it soak for a while and then take the drain tile plugs out of the sump pit to drain the remains. Crazy idea? Not worth the effort? Can I even access/find the drain tile? Just hire a pro to auger/snake the crud out of the drain tile as far as can be accessed?

In my basement the sump pit is in from the basement wall maybe 20". The drain tile, far as I can tell, routes into the sump pit parallel to the basement wall. So I even wonder if I can reasonably access the drain tile from outside of the foundation walls. The basement in my house is only about 16x20, just under the living room section of the house. Everything else is at slab level, like the den/office, foyer, back entrance. Also, given the house was built in 1973, probably whatever mature tech was back then, the drain tile may be cement, certainly not plastic/ABS or anything similar. May even be clay tile.
 
To avoid these ads, REGISTER NOW!
To avoid these ads, REGISTER NOW!

DGersic

Well-known member
Joined
Mar 12, 2017
Messages
6,275
Location
DeKalb, IL
If you can reach it from the sump pit, can you run a rooter up it from there?

If not, digging to wherever is easiest to reach it seems reasonable.
 
OP
A

andyvh1959

Well-known member
Joined
Feb 15, 2020
Messages
2,590
Location
Green Bay WI
well it can be reached with a rooter or drain snale, assuming the drain tile runs at the same level all around the foundation, which it likely does. But then the rooter or drain snake prbably only goes as far as the first bend in the drain tile run. Another option is to get the drain tile rooted out as far as reasonable. The drain tile enters the sump pit from east and west. So perhaps after getting it rooted as far as possible in both directions, then: 1. Fit a plastic elbow into the west inlet to the sump, temporarily sealed in with caulk. 2. Then install a four foot tall riser pipe into that elbow. 3. Then "flood" the drain tile by pouring water/chemicals into the vertical pipe. 4. Wait to see if the water/chemical solution appears at the other inlet into the sump pit.

IF the water solution appears at the other sump inlet at least I know some water gets around the drain tile. If the solution does not come out the other inlet I'd still get some cleaning benefit from the solution in that side of the drain tile. Then perhaps repeat the process into the other inlet.

Probably best to start with a professional that knows something about drain tiles in a foundation under a 70s vintage home likely built with products and systems common back to the early 60's. Have the pro investigate my drain tile and maybe tell me what the drain tile is made of, hopefully not clay tile. Could be concrete tile, certainly not plastic tile for a house built in 1973. Then have the drain tile cleaned out, either by auger or snake, or perhaos water jetting.
 

scooby074

Well-known member
Joined
Oct 26, 2008
Messages
5,229
Location
Nova Scotia
Camera tech has come a long way. Get a contractor to send a scope thru your drains and figure out whats up
 
To avoid these ads, REGISTER NOW!
Top Bottom