Ask a Question forum: HELP NEEDED! Filling old pond

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Col84
Mar 9, 2017 9:06 PM CST
Hi everyone
Im in need of some help. I've got an old pond in my back garden that was filled on by the previous owners 4 years back, every time we have a lot of rain, the area fills to the top with water. With the arrival of my daughter and the garden covered in gravel I'm ripping it all up to lay artificial grass and a new patio. I've emptied the pond out (the precious owners had filled with rubble) now the issue I have is that it seems the soil in my garden is pretty much clay after going down 4-5" and I think this is the issue as to why the pond fills with water. I'm thinking of filling with topsoil in the hope that the soil soaks any rain up we have. Would this be the right thing to do or if anyone has any better ideas please let me know. I've also thought about filling with concrete but I think this may be pretty expensive given the size and depth of the pond itself. I've attached an image of its of any help.
Thanks in advance

Thumb of 2017-03-10/Col84/bdc541

Name: Porkpal
Richmond, TX
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porkpal
Mar 10, 2017 6:41 AM CST
I think ideally you would fill the pond with the same soil(s) that you have in the rest of the garden. If you fill it with topsoil and it is surrounded by clay, the pond would probably become a swamp each time it rains.
Porkpal

Col84
Mar 10, 2017 9:29 AM CST
Thanks for your reply porkpal.
Would filling with concrete be another good option? Has anyone done this?
Name: greene
Savannah, GA (Sunset 28) (Zone 8b)
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greene
Mar 10, 2017 9:53 AM CST
The cost of concrete may be expensive.

Is removing the pond an option? If you could break it up and remove it, you could use the same soil as is in the yard and have a nice smooth surface that will not later become a bog.

I found a discussion on a pond-related website; several suggestions.
https://www.gardenpondforum.co...

Good luck with the project whatever you decide. Thumbs up
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dyzzypyxxy
Mar 10, 2017 10:04 AM CST
I filled an old water garden in my back yard with topsoil, and then planted it full of plants that like their feet wet. Not sure what would work where you are (where are you??) but Cannas, Elephant Ears and gingers of several types just love it in there now. For the most part the plants just slurp up most of the water pretty quickly. I haven't had a problem with any standing water there and we get a lot of heavy rain here in the summer.

In cooler climates, any plant that is described as a "marginal" plant for water gardens - meaning it likes to grow on the edges of the water - would work great there.
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Col84
Mar 10, 2017 11:24 AM CST
Thanks for replies, all the pond itself including the lining is all removed leaving the hole pictured above. I've tried digging up the bottom in the hope the water will drain through but to no joy . Due to the size and depth of the hole it would require a lot of material from my garden to be dug up which although would be ideal, would bring the level of my garden down considerably (I only have small garden) I may look into this however Geeene thanks for the advice, planting on top is not an option as my new patio will be covering roughly 1/3 of where the pond currently sits, the rest will be covered by artificial grass. Really appreciate the help everyone, if anyone has any other ideas please let me know Thumbs up
Name: stone
near Macon Georgia (USA) (Zone 8a)
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stone
Mar 10, 2017 11:45 AM CST
Col84 said:Due to the size and depth of the hole it would require a lot of material from my garden to be dug up which although would be ideal, would bring the level of my garden down considerably (I only have small garden)

I may look into this however Geeene thanks for the advice, planting on top is not an option as my new patio will be covering roughly 1/3 of where the pond currently sits, the rest will be covered by artificial grass. Really appreciate the help everyone, if anyone has any other ideas please let me know

Yeah...
Use the existing garden soil to fill in the pool.... If additional soil is needed to bring up the garden level before hardscaping, spread over entire garden.

I once saw a video of a swimming pool that had been filled... And heavy equipment getting stuck after a rain....

You really want the subsoil to all be the same... Especially if you plan to hardscape... Personally... Ima fan of the wetland plants idea...

Or, putting the liner back... Getting goldfish.

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Tisha
Mar 10, 2017 2:19 PM CST
[quote="stone"]
Yeah...
Use the existing garden soil to fill in the pool.... If additional soil is needed to bring up the garden level before hardscaping, ????


Buy 1/4 , 1/2, etc. load of top soil to top off the area?

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sallyg
Mar 10, 2017 5:31 PM CST
Are you contracting for the patio and turf? Ask the company what to do, since they need to have a good base layer to guarantee their work. Buying concrete seems like overkill.
And note- you won't buy 'topsoil' you will buy the aptly named and cheaper 'fill dirt'
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[Last edited by sallyg - Mar 10, 2017 5:33 PM (+)]
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Nominix
Mar 10, 2017 10:04 PM CST
I have 2.66 acres of clay. It stays wet during the spring and early summer. We have fought it for years so I can offer some advice that has worked for us.
If you fill with topsoil it will probably not make much difference. We have had a lot of mixed results filling and leveling with top soil. The best thing we did was lay french drain 8 inches under the worst places. We didnt use gravel to back fill or anything, just dug a trench and layed in the french drain. Gravel would have been preferable but cost was an issue that year and so far it has drastically improved the drainage in the areas we put it in. Since we have a creek on the property we layed it directly to the creek and so it has a good place to drain. You might consider putting in a piece of french drain and giving the water a path to drain away.

Could also consider filling with gravel and or sand. I put 2 tons of sand on an area and mixed it in and this helped a lot in the area we put it in.
I would also remove the soil at least 6 inches around where the pond used to be as its probably very compact.

If possible - maybe look at leaving an opening for some type of water loving plants or trees such as a willow, river birch or red dogwood.

Those are just some of the things we have done that have helped. Clay is tough to deal with as its drainage is terrible.

Maybe one of those options may help you out. Good Luck!
[Last edited by Nominix - Mar 10, 2017 10:07 PM (+)]
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