Steve910 Posted June 13, 2023 Share Posted June 13, 2023 (edited) Hello I have a question for anyone who has made a pond in Thailand. We have limited space and are looking to make a pond, the pond will be stepped twice allowing fish to eat and lay eggs in the shallow waters (crude drawing below). Our soil is mostly clay, all of the farms within a 1km radius have ponds and their sides are between 80-90 degrees. This is also true for the nearby areas, most of the sides of the pond are almost in a straight line, however these ponds are larger than the size we want. Due to space limitations we are looking to make a pond 9 meter by 6 meter, does anyone know a formula to use to decide how deep to go without comprising the pond to fall in on itself, I have not found much information online. We play to plant grass and cow dung to strength the pond to stop it from cracking. Pond uses will be : collect rain water, breed a few fish. ____ I ------ I -------- I Edited June 13, 2023 by Steve910 Link to comment Share on other sites More sharing options...
djayz Posted June 13, 2023 Share Posted June 13, 2023 I'm pretty sure the guy operating the digger/excavator will know how deep to dig. 1 1 Link to comment Share on other sites More sharing options...
Pogust Posted June 14, 2023 Share Posted June 14, 2023 You need 30% clay content in the soil for the pond not to leak. Sounds like you have that. Pond for holding water and for fish is not the same thing. For water it should be as deep as possible, but a fish pond should be less than 2 m deep and have a flat bottom so you can catch the fish. I would not have steeper sides than 60 degrees. If you take water for watering the level will change over the year and a shelf for fish breeding would not work so well. 1 Link to comment Share on other sites More sharing options...
Ralf001 Posted June 14, 2023 Share Posted June 14, 2023 (edited) Dig until you reach china... Then back off a bit. Serious answer though.... as deep as you can, shallow ponds get toasty warm in Thailand's hot environment and the fishes like to get down low into the cooler water. Edited June 14, 2023 by Ralf001 1 1 Link to comment Share on other sites More sharing options...
Steve910 Posted June 14, 2023 Author Share Posted June 14, 2023 1 hour ago, Pogust said: You need 30% clay content in the soil for the pond not to leak. Sounds like you have that. Pond for holding water and for fish is not the same thing. For water it should be as deep as possible, but a fish pond should be less than 2 m deep and have a flat bottom so you can catch the fish. I would not have steeper sides than 60 degrees. If you take water for watering the level will change over the year and a shelf for fish breeding would not work so well. Thank you so much for your comment. I should add that I am close to a dam and there is a canal just a few meters away where I can pull water to continually refill the pond. Would this make it suitable for using as a fish pond and a place to pull water from as I can always refill the pond? Thanks again. Link to comment Share on other sites More sharing options...
Steve910 Posted June 14, 2023 Author Share Posted June 14, 2023 1 hour ago, Ralf001 said: Dig until you reach china... Then back off a bit. This is what I have been told by the locals, I was just a bit concerned if the well would pond in on itself as my pond will be not as wide or long. Link to comment Share on other sites More sharing options...
ChipButty Posted June 14, 2023 Share Posted June 14, 2023 Will the pond be out in the sun all day? Link to comment Share on other sites More sharing options...
Steve910 Posted June 14, 2023 Author Share Posted June 14, 2023 1 hour ago, ChipButty said: Will the pond be out in the sun all day? there is some partial cover from the trees but there is direct sunlight hitting it. Link to comment Share on other sites More sharing options...
farmerjo Posted June 14, 2023 Share Posted June 14, 2023 Think it's be confirmed on here before 4 metres is the maximum depth. Any deeper requires mining license but check with your local mayor. Link to comment Share on other sites More sharing options...
Pogust Posted June 15, 2023 Share Posted June 15, 2023 22 hours ago, Steve910 said: Thank you so much for your comment. I should add that I am close to a dam and there is a canal just a few meters away where I can pull water to continually refill the pond. Would this make it suitable for using as a fish pond and a place to pull water from as I can always refill the pond? If you have access to water all year you don't need a deep pond. A flat bottom will make it possible to drag a net across and get the fish. Plant trees around to get some shade, both for fish and fisherman. Link to comment Share on other sites More sharing options...
Mr Kie Posted June 19, 2023 Share Posted June 19, 2023 9 x 6 is quite a small pond, the deepest you should do is 3 meters. the side slope angle should be around 30-45 degree. clay soil is very good for holding water and not easily cracking, so you either planting deep root grass or using rice grain spread it over around the edge of the pond it's growing very fast or you can grow both i mean vetiver and rice, with these two combined will protect it from cracking Link to comment Share on other sites More sharing options...
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