Can You Add a Waterfall to an Existing Pool? The Ultimate Guide for Pool Owners

Hey there! I‘m Lillie, your friendly neighborhood pool expert. If you‘re wondering whether you can add a waterfall feature to your existing backyard pool, you‘ve come to the right place! Installing a waterfall can totally transform your pool from basic to spectacular. But it‘s not as simple as just plopping in a store-bought fountain. A major renovation like this requires understanding what‘s involved before you dive in.

In this comprehensive guide, I‘ll walk you through everything you need to know if you‘re considering adding a waterfall to your current pool:

Why Add a Waterfall?

Let‘s start with the reasons you might want to install a waterfall in the first place:

• Visual Appeal – This is likely the #1 motivator. A waterfall adds drama, movement and the soothing sights and sounds of cascading water. It‘s like bringing the essence of a tropical resort right to your yard!

• Ambiance – The gently tumbling water creates a peaceful, almost meditative atmosphere. Your yard becomes a relaxation destination.

• Fun – Splashing around under the waterfall or sitting under its misty spray adds a playful element, especially for kids‘ enjoyment.

• Value – Water features boost a home‘s worth. One survey saw listings with pools jump up 96% in value when they also had a waterfall!

• Mask Noise – The ambient waterfall noise drowns out hustle and bustle from traffic, neighbors, or an unappealing nearby highway.

Clearly there are some stellar reasons to add this kind of water feature. But next let‘s get into the nitty gritty of what‘s actually involved in this backyard upgrade.

What Are the Costs for Adding a Waterfall?

Of course one of the first things you‘ll want to think about is cost. Installing a waterfall is a significant investment, with the price tag typically ranging from $4,000 on the very low end up to $30,000 or more for extravagant designs.

Here are the main elements that will impact your total project budget:

• Waterfall Materials – Small pre-made plastic waterfall forms can cost as little as $1,500. Larger custom rockscapes using actual boulders and stone veneers can cost between $8,000 to $15,000. Adding special lighting, water misters, or other effects will raise the price even more.

• Excavation & Demolition – If you need to bust up your patio or rearrange plumbing beneath the pool, those hardscaping costs can add around $2,000 to $5,000.

• Pumps & Plumbing – A powerful waterfall pump starts around $500. Copious amounts of new PVC pipe, valves, and electrical work tacks on $1,500 to $5,000 more.

• Professional Installation – With a complex project like this, hiring a pool contractor is highly recommended. Their labor fees ranging from $5,000 to $15,000. DIY projects can save significantly on the labor costs.

As you can tell, waterfall materials, equipment, and construction costs all add up. But as they say, you get what you pay for. A first-rate, custom-built waterfall can increase your home‘s value exponentially.

7 Key Steps for Adding a Waterfall

If you‘ve weighed the costs and are ready to forge ahead with this exciting pool renovation, here are the 7 major steps involved with successfully adding a waterfall:

Step 1: Evaluate Your Pool‘s Current Layout

Really look at the overall size, shape, depths, and features of your existing pool. Are there areas with underutilized or dead space perfect for converting into a waterfall? Make note of any excavation challenges too. This assessment helps determine the best waterfall size and location.

Rectangular or curved pools often have great spaces to tuck in waterfalls. Freeform kidney shaped designs offer more flexibility. Measure carefully, because you‘ll need adequate linear wall footage for the waterfall length you have in mind.

Step 2: Design & Plan Your Ideal Waterfall

Now comes the fun part – deciding exactly how you want your waterfall to look! Determine key factors like:

• Linear or curved
• Single tier or multi-level
• Rockscape or sleek modern materials
• Incorporating spouts, sheets, weirs, or bubblers
• Ideal height, width, and water flow volume based on your pool‘s scale

This helps estimate what pump "muscle" you‘ll need. Work with a designer to bring your vision to life!

Step 3: Order Materials

Shop around to find the perfect combination of rocks, stone, liner, lighting, plumbing parts, and other materials to build your dream waterfall. Shipping availability and special order lead times are key considerations.

Remember – it‘s much better to have too many rock options than not enough! I‘d suggest ordering an assortment of boulder sizes and types from landscape suppliers.

Step 4: Install Plumbing and Equipment

A powerful high-flow waterfall pump is essential. Size it for your planned waterfall dimensions and desired water volume using GPM (gallons per minute) ratings.

Situate the pump away from the pool and run new plumbing lines underground from the pump to the eventual waterfall site. Add valves and connections back to the main pool system.

Step 5: Construct the Waterfall

Now the real construction begins! Build a solid frame and pour a concrete footer if needed. Carefully position boulders and secure them with construction adhesive and mortar. Line with waterfall foam and seals. Slowly shape the waterfall cascade using layers of rock, stone, liners, and sealants. Be meticulous!

Step 6: Complete Finishing Touches

As you near the end, focus on aesthetics with grout repair, lighting, decorative rock accents, operational testing, and any needed deck repairs around the site. Troubleshoot any leaks between rocks and make it picture perfect!

Step 7: Maintain Your Waterfall

Like any water feature, waterfalls require regular upkeep. Routinely clean the pump, change filters, remove debris in catch basins, inspect for leaks, and keep the surrounding area clear of dirt buildup and vegetation. Enjoy your waterfall paradise!

As you can see, installing a pool waterfall is a major project. But the feeling of ultimate relaxation having your own personal oasis waterfall will make all the effort worthwhile.

Choosing the Best Waterfall Type for Your Pool

With so many waterfall design possibilities, how do you narrow down the options? Here are some of the most popular waterfall types to consider:

Linear Waterfalls – A straight waterfall design works great when you have adequate width along one edge of a rectangular pool. Provides clean continuous sightlines.

Curved Waterfalls – Perfect for rounding out a round or oval shaped pool. The gradual curve creates a soft, natural edge.

Sheet Waterfalls – Where a pool has existing steps or benches, a wide linear sheet of gently falling water can be installed above, creating a peaceful cascade.

Boulder Waterfalls – By artfully stacking and arranging large rocks combined with a durable liner, you can mimic the look of a natural rock waterfall.

Modular Waterfalls – Prefabricated fiberglass waterfall units are affordable and available in many shapes like curves, lean-tos and more.

Tiered Waterfalls – A staircase of descending water flows from one catch pool to the next before exiting into the main pool. Stunning but requires more space.

Vanishing Edge Waterfalls – Water gently spills over a concealed edge into a catch basin below, seeming to disappear into the horizon.

Weigh your options carefully and get creative! Many factors like pool shape, backyard layout, noise considerations, and local building codes impact the possibilities. An experienced waterfall designer can help point you in the right direction.

What‘s Involved in Waterfall Plumbing?

While waterfalls add beauty, their installation requires some complex plumbing work to operate safely and efficiently, including:

• A rigid PVC pipe system with proper slope to feed water from the pump up to the elevated waterfall spill point.

• A high-performance pump, sized for 50 to 100+ GPM flow rates depending on waterfall width and drop height.

• Gate valves and switches to control flow between the main filtration system and waterfall feature.

• Extra piping to redirect water from the waterfall basin back into the main circulation system.

• Electrical connections to control the dedicated waterfall pump separately from the other equipment.

• Potential upgrades to pool equipment like replacing the main pump or filter to free up capacity.

• Trenching around pool peripheries to run new plumbing lines underground.

The separate plumbing loop ensures adequate water circulation to both the main pool and waterfall. Consulting a qualified pool plumber is a wise move.

Choosing Materials for Pool Waterfalls

Popular options for achieving stunning waterfall designs include:

• Poured Concrete – Offers versatility in shapes like curves, edges and rock forms. Can be left natural gray or colored/stained. Extremely durable.

• Boulders – Stacked slate, quartzite or other local stone boulders. Most natural appearance but very heavy. Granite and marble also common choices.

• Fiberglass – Affordable and super lightweight. Available in many premade forms but limited on highly custom shapes.

• Faux Rock – panels formed from molded concrete and GFRC (glass fiber reinforced concrete) that mimic the look of real rock. Budget-friendly.

• Tile – Great for a mosaic waterfall look. Grout provides texture. Suited best for low vertical drops.

• Brick – A viable option that can coordinate with existing pool masonry. Not lightweight but relatively easy to work with.

• Wood – Easy DIY material but drawback is potential to deteriorate faster than other options. Needs routine sealing.

Consider factors like weight, durability, cost, availability in your area, and the natural vibe you hope to achieve. Speaking to landscaping suppliers gives you even more ideas.

Permits and Codes for Pool Waterfalls

Depending on your local area, adding a pool waterfall will likely require obtaining some permits before getting started:

• Building Permit – Required for any structural changes to existing pools. Ensures latest safety codes are followed.

• Plumbing Permit – Needed for alterations to pool‘s underground plumbing for new piping, pumps, electric.

• Electrical Permit – If adding new high-voltage connections, lighting, outlets, or wiring.

• Historic District Approval – For properties in designated historic neighborhoods, approval is often needed for backyard upgrades visible to the public.

• Homeowners Association Approval – If part of a HOA community, you‘ll want written approval for significant pool renovations.

• Local Municipality Approval – Specific towns or counties may have rules about waterfall size, placement, utilities, noise levels and more.

• Floodplain Development Permit – Required if your property sits in a designated 100-year floodplain.

Always double check on permitting with your local city or county building department before getting started. Many pool contractors are experts at navigating the permit approval process.

Ongoing Waterfall Maintenance

To keep your waterfall running smoothly for years to come, plan on regular maintenance:

• Remove fallen leaves, debris, and mineral deposits from waterfall basin, rocks, and catch pools

• Use muriatic acid cleaning solution to remove calcium and dirt buildup from waterfall fixtures

• Check for leaks between waterfall rocks and recaulk as needed

• Confirm adequate water volume pumping to waterfall – at least 20 GPM flow rate

• Test balance valves for proper flow ratio between pool and waterfall

• Inspect construction materials for cracks or leaks and repair promptly to prevent water loss

• Replace missing or deteriorating grout between tile or stone accents

• Change waterfall pump filter cartridges twice a year or more often if very dirty

Consider hiring a professional pool service company for periodic cleaning and inspections. With diligent care, your waterfall can function beautifully for many years!

Sensational Pool Waterfall Ideas to Inspire You

Need a little inspiration for your own backyard waterfall oasis? Here are some incredible examples:

Mountain Oasis – This stunning pool features a 50-foot faux slate cliff waterfall pouring from a grotto complete with a footbridge crossing overhead. It‘s lit up at night for added drama.

Tropical Paradise – A multi-level streambed carries water over concrete boulders and under a log bridge before emptying into the freeform pool below, encircled by palms.

Contemporary Chic – A sleek linear waterfall spills like a sheet into the pool in this modern backyard. Programmable LED lights change color.

Kid-Friendly – Gentle mini-falls borders this shallow pool area, providing endless fun for little ones along with mushroom fountain accents.

Zen Retreat – Simple and elegant, a low clear sheet waterfall spills into a pebble bottomed catch basin, surrounded with candles and greenery.

Mediterranean Villa – This curved pool incorporates an arched aqueduct-style waterfall spilling from hot tub to pool. Italian cypress trees complete the mood.

Let your imagination run wild! No matter your preferred style, a pool waterfall can create a beautiful backyard. I hope these ideas get your creative juices flowing.

FAQs – Your Top Waterfall Questions Answered

Here are answers to some of the most frequently asked questions I get about adding waterfalls to existing pools:

How loud are pool waterfalls?

Most are comparable in noise level to a background dishwasher or air conditioner when you‘re right next to them. The sound doesn‘t normally carry far past the pool itself. Consider a laminar flow waterfall if seeking the quietest option.

Do you need a separate pump for a pool waterfall?

Yes, you‘ll need a dedicated high flow pump sized specifically for your waterfall dimensions. This ensures adequate water volume without compromising the main pool filtration system.

What size pump do I need for my waterfall?

Larger waterfalls need pump flow rates of 50-100 GPM. Smaller waterfalls may only require 20-30 GPM. Consider width, drop height, and water volume needs when selecting pump size.

Can you turn off a pool waterfall?

Yes! Installing a proper valve system allows you to shut off the waterfall pump separately from the rest of the pool equipment. This saves electricity and maintenance when you want to disable it seasonally.

Will a waterfall increase my pool‘s evaporation rate?

Yes, waterfalls can increase evaporation up to 30% or more, due to the agitation and surface area. Using a pool cover helps offset this water loss when the pool is not in use.

How much does adding a waterfall cost?

$4,000 on the low end for small premade waterfalls. Custom rock waterfalls with professional installation often cost $15,000 to $30,000. The sky‘s the limit for extravagant designs!

Can you add a waterfall to any pool?

Waterfalls can work for concrete, vinyl, fiberglass and gunite pools. Above ground pool waterfalls are also possible by securing lightweight forms. Make sure to account for added weight on pool walls from rockscapes.

I hope these answers help give you a great starting point for your pool waterfall planning! Feel free to reach out if you have any other questions come up along the way.

Conclusion: Create Your Backyard Waterfall Oasis

Thanks for taking the time to read my complete guide on adding waterfalls to existing pools. As you can see, installing a waterfall involves significant investment and commitment. But the end result is a gorgeous, relaxing pool area that adds value, enjoyment and beauty to your backyard.

I hope this info gives you a helpful understanding of all the steps and considerations involved. By doing thorough planning upfront, you can make your dream of a personal pool waterfall paradise a reality!

If you have any other questions as you explore options for your pool renovation project, don‘t hesitate to get in touch. I‘m always happy to help pool owners like yourself with customized advice and ideas.

Here‘s to many happy days relaxing by your new waterfall!
Lillie Gabler
Backyard Pool Expert