FAQ: How To Build A Fish Pond With Concrete?

How thick does concrete need to be for a pond?

you should be 9-10 inches with one or even two layers of mesh to be safe. I did not use a DPM as the stone is free draining but if you are below the water table it may save you problems when lining the pond.

Can you make a fish pond out of concrete?

A concrete pond adds beauty and functionality to your landscape. Make sure to properly excavate the pond, then pour concrete to the right thickness, and reinforce it with wire mesh to create a concrete pond that will last for years.

How do you waterproof a concrete pond?

A: The polyliner isn’t necessary to waterproof the concrete, but if you must, I would suggest using a product like Thoroseal, which can be found in most construction supply stores. It’s a cement -based product and does a good job of weatherproofing. You apply at least two coats to the concrete surface.

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Does a concrete pond need to be sealed?

You don’t need to re- seal your pond till years, once filled after application of Concrete fish pond sealant. You will have a great fish pond that will prove entertaining and easy to maintain for years.

Will a concrete pond hold water?

Untreated concrete is usually quite porous, absorbing and allowing water to slowly seep through microscopic spaces, but it can be made highly resistant to the passage of water by using fine aggregates and waterproofing additives to close the pores.

What kind of concrete should I use for a fish pond?

For the floor of your pond, plan on 4-inch-thick concrete. If your pond floor is 10×12 feet, that means you will need about 1.5 cubic yards–or about 6000 pounds–of concrete. You should consider pouring concrete for the sides of the pond as well. If they are vertical, you will have to form them with wood first.

How much does it cost to build a fish pond?

Some factors affecting price are size, depth and whether there are fish. The cost to build a pond is usually $2.50 to $7.15 per square foot. For a larger-scale project, like a lake, expect to pay $3,000 to $8,200 per acre or more. The overall price varies based on a variety of factors.

Does concrete hold water?

Does Concrete Absorb Water? Yes, concrete can absorb water because it’s porous like a sponge. When the ambient relative humidity is high, concrete can absorb water vapor ( moisture ) from the air. When the relative humidity is low, water will evaporate from the concrete into the ambient environment.

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Is concrete poisonous to fish?

Concrete Is Toxic To Fish Concrete is harmless to fish once it has been leached. How do you leach it? After the concete has cured (30 days), fill the pond with water and add muriatic acid (“pool acid”) to drop the pH into the upper 4’s or low 5’s. Keep adding acid to the water to maintain a very low pH.

How many catfish can you have in a 1000 Litre pond?

So 1000 liters is 264 gals so about 26 fish.

What is the best pond sealer?

The Most Effective Pond Sealer in the Industry: Crushed Sodium Bentonite. Crushed sodium bentonite is a natural substance that has numerous applications. It is commonly used as a sealant in ponds that experience high rates of water seepage.

How do you waterproof a fish pond?

Therefore, you need to seal the pond with a waterproofing compound like super laykold, a rubberised bitumen emulsion that can be reinforced with abeĀ® membrane to provide a seamless professional waterproofing system. It is also non-toxic and koi / fish friendly.

What can I mix with cement to make it waterproof?

For the masonry of exterior walls with hard brick one often uses 1 part cement, 3.5 parts sand, 0.25 part lime. While for the same job, but with much softer limestone, a completely different mixing ratio is advised, namely 1 part cement, 9 parts sand, 2 parts lime.

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