QA

How To Build An Above Ground Pond With Blocks

Can you build a pond with concrete blocks?

If you want to add a pond to your landscape but are not interested in spending a lot of time digging a hole, an attractive above ground pond made with concrete blocks provides the solution.

How do you make an above ground pond with cinder blocks?

How do you waterproof a concrete block pond?

Waterproof your concrete pond or water feature AQUA-STOP has been used successfully on both small and large garden ponds, larger civic fountain pools and even trout farms. AQUA-STOP is easy to apply to your pond. Simply brush it on as a slurry on to a pre-wetted surface. Apply a second coat with 24 hours.

What blocks to use to build a pond?

You should use walling blocks for this – Bradstone do a great range. If you’re building a big pond, you will need to use breeze blocks to reinforce the wall because of the weight of the water. The key to a strong wall is to interlock the bricks at the corners.

Can you put breeze blocks in a pond?

This exposure to the sun, wind, and rain ages the material so it doesn’t affect the pH of the water. Any older concrete blocks that have already sat out around the edges of the pond or anywhere else are likely safe to use in a pond as is, as long as there’s no stain, paint, or other residue on them.

Does a concrete pond need to be sealed?

However, concrete is a porous material and can eventually leach lime and other chemicals into your pond unless you seal the pond with a waterproofing compound. The market provides different products that provide a flexible, rubber-like, waterproof coating for your concrete pond.

Can you use cinder blocks in pond?

The site you are considering for a pond plays a large role in determining the type of pond to build. Ponds constructed from cinder-blocks solve the digging dilemma. This classic round pond is easy to construct but can be more expensive than an underground model due to the number of rocks required.

Can you put cinder blocks in a koi pond?

A. The idea that concrete blocks can change the pH in a pond is a very old myth. It was once an extremely popular myth. Less so these days. You can use the block without concern for pH, lime, etc.

How thick does concrete need to be for a pond?

The basic construction of a concrete pond follows that of the liner ponds. The concrete should be 4 to 6 inches thick. Once the dimensions are established and an outline laid out, dig out the soil for the entire pond. Forms must be built in place to hold the concrete while it dries and cures.

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.

How thick should a concrete pond base be?

The concrete base is normally around 30cm thick, therefore the reinforcing mesh should be suspended about 15cm from the ground so that it runs through the middle of the base.

How thick should a pond wall be?

You’ll need a three inch thickness of stone for a small pond, but this should be increased to 4+ inches for a medium to large sized area.

How can I waterproof my pond?

How to waterproof a pond using Liquid Rubber waterproofing paint? Clean the pond thoroughly & let dry. Apply Liquid Rubber & bandage to all areas needing extra reinforcement such as penetrations, joins etc. Apply 3 coats of Liquid Rubber allowing to cure approx. Let final membrane to cure minimum 3 weeks.

How do you concrete a pond base?

Select a suitable area for your pond. You will require a filter, pump or both, so make sure there’s an electrical power point near by. Mark the outline of your pond. Excavate the pond. Allow for the overflow drain. Allow for your filter. Line with ‘Forticon’ plastic and mesh. Pour the concrete. Add river pebbles.

Can bricks go in pond?

Clay bricks are safe. They are basically fired clay. Be careful if you will leave them over winter because they may crack into pieces due to the water in them freezing and expanding.

Can you put concrete slabs in a pond?

It is possible to build ponds in all manner and shapes and sizes and this can have an effect on the paving material that you choose to pave the area. For large, regular shaped ponds, larger paving slabs are more suitable as they will be easier to lay.

Can cinder blocks be used underwater?

Cinder blocks are more porous than standard concrete blocks or poured concrete. If you do not seal the cinder blocks now, they can become unsealable after extensive water seepage – after the seeping water has carried clay or soil through the concrete and filled the pores.

How much does it cost to build a concrete pond?

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.

What type of concrete is used for ponds?

If you are in a climate where the soil doesn’t freeze in the winter, then a 3000-psi mix design is possible. Using ready-mixed concrete would save you some work, but you can buy 5000-psi cement in bags at the Home Depot. My suggestion is that you reinforce your new pond with 3/8-inch rebar (referred to as #3 bar).

Does a raised pond need an overflow?

Yep, you definitely have to plan ahead for overflowing. The advice I was given was to make a drainage area in a spot where the water running out of the pond will not flood your yard or cause other problems.