|
Forums36
Topics40,942
Posts557,766
Members18,481
| |
Most Online3,612
Jan 10th, 2023
|
|
|
1 members (Foozle),
661
guests, and
258
robots. |
|
Key:
Admin,
Global Mod,
Mod
|
|
|
|
Joined: Jul 2010
Posts: 26
|
OP
Joined: Jul 2010
Posts: 26 |
OK fellas, got one for you. I have an existing pond, about .75 acres, average depth 7-8 feet. The dam has no keyway and water does seep through to the backside of the dam. The seepage is very heavy in the spring and all but stops by this time of the year after I've lost almost 3 feet of water depth.
The question is, can I fix the problem by digging a trench right down the middle of the dam and filling it with a clay/bentonite mixture? The dam is probably 10 feet wide. We also suspect that roots from a nearby large oak are contributing to the seepage.
I see lots of discussion about building a keyway in new pond construction or draining a pond and building a keyway. I want to know if you can put a keyway in an existing dam WITHOUT draining the pond.
|
|
|
|
|
Joined: May 2009
Posts: 5,722 Likes: 282
Lunker
|
|
Lunker
Joined: May 2009
Posts: 5,722 Likes: 282 |
If the keyway joins an impermiable layer at its base, you'll have a pond that leaks very little. I am in central Indiana, and in spite of the rainless July, my pond is down less than 6 inches, and we irrigate a commercial vegetable patch out of it. It is well worth the effort to seal up a pond!
|
|
|
|
|
Joined: Jan 2006
Posts: 16,049 Likes: 276
Moderator Lunker
|
|
Moderator Lunker
Joined: Jan 2006
Posts: 16,049 Likes: 276 |
If the leak stops, it shouldn't be a problem of not having a keyway.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
|
|
|
|
|
Joined: Sep 2009
Posts: 3,544
Hall of Fame Lunker
|
|
Hall of Fame Lunker
Joined: Sep 2009
Posts: 3,544 |
I believe in catch and release. I catch then release to the grease.. BG. CSBG. LMB. HSB. RES. ![[Linked Image from i90.photobucket.com]](http://i90.photobucket.com/albums/k247/jmilczski/Fish/PBSubscribe.gif)
|
|
|
|
|
Joined: Jan 2006
Posts: 16,049 Likes: 276
Moderator Lunker
|
|
Moderator Lunker
Joined: Jan 2006
Posts: 16,049 Likes: 276 |
The keyway or core is done prior to building the actual dam. It is the bottom of the structure. Thus, if the water stops dropping at any point, the leak will be just above that water level. Had it been leaking from the bottom, it would never stop as long as there was water pressure(weight) from above.
Last edited by Dave Davidson1; 08/09/11 04:54 AM.
It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.
Without a sense of urgency, Nothing ever gets done.
Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP
|
|
|
|
|
Joined: Sep 2009
Posts: 3,544
Hall of Fame Lunker
|
|
Hall of Fame Lunker
Joined: Sep 2009
Posts: 3,544 |
Oh I see what you mean.. I knew what a core was just didn't really read your post correctly.. Makes sense actually perfect sense lol
I believe in catch and release. I catch then release to the grease.. BG. CSBG. LMB. HSB. RES.
|
|
|
Moderated by Bill Cody, Bruce Condello, catmandoo, Chris Steelman, Dave Davidson1, esshup, ewest, FireIsHot, Omaha, Sunil, teehjaeh57 |
|
