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How do I calculate what size basin I need for a pondless waterfall? | Decorative Ponds & Water Gardens Q & A

Q: How do I calculate what size basin I need for a pondless waterfall?

Q: How do I calculate what size basin I need for a pondless waterfall?

Robert – Waverly, TN

A:  With the help of a few friends, installing a pondless waterfall is an easy way to upgrade your land- or waterscape. If you are planning to design and build your own feature, here’s how to do the math to determine your basin size.


Step 1: Calculate total amount of water in your stream

Sound tricky? It’s not. To calculate the water that’s in motion in your stream, first measure your stream’s length, width and depth. Then plug those numbers into this equation: L x W x (0.25 x D of stream, generally 1 to 2 inches) x 7.48.

Here’s an example. If your stream is 25 feet long, 2 feet wide and 1 inch deep, the equation would look like this: 25 x 2 x (0.25 x 1) x 7.48 = 93.5 gallons.

Step 2: Calculate amount of water your basin needs to hold

As a general rule, you will need your basin to hold 2½ times the amount of water in your stream. To find out how much water your basin will need to hold, multiply the gallons of water in your stream by 2.5. In the above example, it would be 93.5 x 2.5 = 233.75 – so your basin would need to hold 233.75 gallons of water.

Step 3: Determine the size basin needed to hold the water

Here’s where things get a little tricky. You’ll likely use boulders, stones and other décor in your design. Well all that rockwork will take up space for water, and so you’ll need to go with a larger vessel.

Try this quick equation that will help you determine what size basin you’ll need with boulders: L x W x D x 2.2 = gallons of water the basin will need to hold. To give you an idea, a 5 foot by 10 foot basin that’s 3 feet deep and contains stone will hold 330 gallons of water.

A space- and cost-saving option is to use a basin matrix in place of some of the boulders. A basin matrix is a strong, 27-by-16-by-17½-inch hollow box that’s perforated with half-inch holes to allow water to collect and pass through. You can stack them together and landscape right over them. Each basin matrix holds 31.5 gallons, adding valuable water volume without increasing the size of the basin. Don’t forget to add a pump vault for easy access to your pump.

Go with a Kit

If you aren’t trying to customize a large waterfall, consider investing in a pond free waterfall kit, like PondBuilder™ Cascading Falls Pondless Kits. They contain all components you’ll need – from underlayment and liner to a waterfall box, pump, basin matrix and plumbing – with predetermined dimensions to help you create your water feature.

Pond Talk: What’s the largest size boulder you’ve installed in your water- or landscape?

Create A Low Maintenance Waterfall - PondBuilder™ Cascading Falls Pondless Kits

My mom wants a water feature but needs something easy to maintain. Any suggestions? | Decorative Ponds & Water Gardens Q & A

Q: My mom wants a water feature but needs something easy to maintain. Any suggestions?

Q: My mom wants a water feature but needs something easy to maintain. Any suggestions?

John – Bradford, OH

A: Sounds like mom has been bitten by the water gardening bug! Thanks to all the options available to budding pond hobbyists, she doesn’t need to install a maintenance-heavy feature. She can find a simple-to-use one that’s ideal for a small yard, patio or tabletop.

It’s easy to help her choose the perfect water feature. Simply ask her these questions:

1: Does She Want to Keep Fish?

If so, she’ll need a water feature that has a pond to house fish as well as a filtration system to keep their water clean – and the AllClear™ Ecosystem Pond Kits are designed for hobbyists who want just that. They come in several sizes, but the 6-foot-by-11-foot kit creates a pond that’s about 700 gallons, which is large enough for a few fish and a small waterfall. It includes fish-safe pond liner and underlayment, a pressurized filter, a waterfall filter, pump, tubing, waterfall foam, installation hardware and 12 packets of Nature’s Defense. All she’ll need is a little help digging the hole in her yard!

2: Does She Want a Waterfall but No Fish?

If a waterfall is her main wish, she won’t need to get dirty digging a pond. She can try something self-contained, like the Atlantic™ Colorfalls Basin Kit and Colorfalls Lighted Waterfall Weir. Basin Kits come in three sizes – 12 inches, 24 inches and 36 inches – and includes a Colorfalls Basin reservoir, a TidalWave 2 pump, splash mat, auto fill valve and installation kit. She can add some aquatic plants and choose a waterfall color for nighttime viewing. And talk about low maintenance: There’s no filtration system to worry about. Easy peasy!

3: Does She Just Want the Sound of Bubbling Water?

If she’s simply after the soothing sound of bubbling water, suggest something more decorative, like the Atlantic™ Color Changing Vase Fountain and Basin Kit. Available individually in several sizes or as a set, the polyethylene vases in this water feature come alive with color and light as water bubbles from the top. The kit includes a color-changing vase fountain, fountain basin, a plumbing kit, auto fill valve, pump and remote control to turn on the light display. This simple-to-operate feature becomes quite a show-stopper at night!

These easy-maintenance water features will transform your mom’s yard or patio into a relaxing oasis that she’ll love. But be warned: Once the water gardening bug bites, she’ll be hooked – and asking for a larger pond in no time!

Pond Talk: Do you remember your first water feature? What was it like?

Beautiful Color Changing Display - Atlantic™ Color Changing Vase Kits

Pondless or pond? Why not have both! | Decorative Ponds & Water Gardens Q&A

Pondless or pond? Why not have both!

Pondless or pond? Why not have both!
Alvin – Boulder, CO

One of the greatest elements of decorative ponds and water features is that each can be as unique and distinguished as the person creating it. The shape, style and implementation of your water garden is limited only by your imagination. It is this freedom to inspire and create that keeps pond owners incessantly engaged in the hobby.

In previous blogs we have discussed the different types of ponds and water features available along with some of the perks and drawbacks of each type. While any of these water features, waterfalls, and ponds are great on their own, you can also incorporate the different feature types to create a truly breathtaking water feature.

A great example of combining feature types into one functional display is the combination of an elevated pond that cascades down into a pondless waterfall. Think of this feature as a pondless water fall type water feature with a pond half way through the waterfall. Combining these two features opens up possibilities that may have been impractical with a certain feature alone. Pond owners with children are often drawn to pondless features as there is no potentially hazardous standing water body for them to wander into. By elevating the pond to a height that is out of reach you can still enjoy the freedom to incorporate fish and plants into your water feature while the pondless waterfall safely returns water underground and out of reach. As you will have to purchase the major components for either a pond or water fall feature, adding the additional parts to incorporate the two features together is easier and more cost effective than having to buy items for two separate features. Both Pond Kits and Pondless Waterfall Kits are available for purchase to eliminate the guesswork of what items your need to construct either particular feature. To simplify the purchasing process you can purchase a Pondless Waterfall for the main components and some additional 45Mil Rubber EPDM Liner and Seam Tape to construct the elevated pond.

Laying out and combining advanced water features and ponds may require expert advice or guidance. You can eMail, or call and a pond guy or gal will help you choose the products that will need for your water feature. When constructing any type of pond or water feature it is imperative that you take your time and plan accordingly to ensure a smooth and enjoyable pond building process.

Pond Talk: What types of pond types have you combined in your water feature? Share your photos and stories for inspiration.

Pond Kits


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