DIY Backyard Waterfall Project: A Budget-Friendly Oasis for Summer Relaxation

Looking to elevate your backyard with a stunning feature that won’t break the bank? A custom-built waterfall might be just what you need.

This project transformed a neglected corner of our yard into a serene focal point — all at less than half the cost of a store-bought water feature. Read on to discover how we did it and how you can too.

Why This Plan Works

DIY Backyard Waterfall

  • Cost-Effective: We built the entire waterfall for under $150, compared to $200–$300 for pre-made kits.
  • Customizable: Adaptable to any space, using locally sourced materials.
  • Low Maintenance: Designed with natural drainage to reduce standing water and mosquito breeding.
  • Pet-Friendly: Our dog enjoys lounging in the cool water on hot days.
  • Visually Appealing: A unique feature that adds charm and tranquility to any backyard.

What You Will Need

Here’s a quick look at the materials we used:

  • Railway ties and gardening ties
  • 1” river rock and pea gravel
  • Plastic sheeting or pond liner
  • Bubble wrap or similar cushioning material
  • Three 5-gallon pails (modified)
  • Water pump and hose
  • Assorted larger rocks from a landscaping supplier
  • Rebar for securing the ties
  • Tools: Saw, drill, shovel, hammer

How to Make

Step 1: Brainstorm and Visualize the Space

Brainstorm and Visualize the Space

We spent time simply observing the southeast corner of our yard, where little would grow. With a pile of rocks in view, we envisioned turning this underused space into a calming water feature.

Step 2: Build a Retaining Wall

Build a Retaining Wall

Using railway ties (purchased for about $4 each), we built a short raised wall along the fence line. To allow for future fence maintenance, we left a small gap between the ties and the fence. The wall gradually tapered off from two ties in height down to one, and finally to ground level.

Step 3: Define the Boundary

Define the Boundary

We continued placing ties along the fence to frame the area that would hold the gravel and river rock. Using a saw, we trimmed the ties to size.

One upper tie was removed to better accommodate our design. A yellow pail seen in our pictures becomes important in the next stage.

Step 4: Dig the Reservoir Area

Dig the Reservoir Area

Time to dig! The 5-gallon pails serve as the reservoir, so we excavated a hole deep enough to hold them. These pails must sit lower than the top of the waterfall, allowing water to naturally flow back into them — just like a drain in a sink.

We used three pails to create ample water storage, but you can adjust depending on your desired size.

Step 5: Cushion and Line the Pond

Cushion and Line the Pond

We used leftover bubble wrap to cushion the ground, preventing sharp rocks from puncturing the plastic liner. Alternatives include old carpeting or layers of newspaper.

For the liner, we opted for thick poly plastic (commonly used as a vapor barrier), which is more budget-friendly than commercial pond liner. This step ensures your water feature stays intact without costly leaks.

Step 6: Prepare and Place the Pails

Prepare and Place the Pails

Each pail was modified with twelve ½” holes — four holes each at 3″, 6″, and 8″ heights. These holes allow water to flow in, while keeping out the river rock.

One pail, designated for the pump, also had a notch near the rim to accommodate the hose and electrical cord. With lids secured, we placed the pails into the hole and backfilled with 1” river rock.

Step 7: Enclose the Rock Bed

Enclose the Rock Bed

We used gardening ties (about $3–$4 each) to close off the area, creating a defined bed for our rocks. Rebar was hammered through drilled holes in the ties for stability — a large hammer works better than an axe, which we learned firsthand.

We then filled the enclosed area with pea gravel (about ¼” diameter). To control weeds, we used plastic sheeting only where water would flow, but landscape fabric could be used elsewhere.

Step 8: Install the Pump Hose and Electrical

Install the Pump Hose and Electrical

From the pump pail, we ran the hose and electrical cord up to the waterfall’s peak. The hose was hidden behind a top rock, and the electrical line was routed safely away from the water source. Safety first — never mix water and electricity.

Step 9: Arrange Large Rocks

Arrange Large Rocks

We placed larger rocks to encircle the water area, tapering off to smaller rocks at the edges. This created a natural, aesthetically pleasing flow. Interestingly, due to minor leakage in our pond (likely from the bubble wrap and plastic), the water slowly drains — a bonus for us in mosquito-prone Manitoba, as it prevents stagnant water and bad odors. Plus, our large dog enjoys this cool spot on hot days.

Step 10: Plug It In and Enjoy

Plug It In and Enjoy

With everything in place, we plugged in the pump, listened to the soothing sounds of flowing water, cracked open a cold drink, and settled in for a relaxing summer afternoon. Our waterfall has become a beloved feature, enhancing both the look and feel of our backyard.

Note: Be sure to position your waterfall in a well-drained area away from homes or structures. Regularly check the water level to avoid running the pump dry.

Other Details Display

  • Location: Corner of the backyard, southeast facing
  • Materials: Railway ties, gardening ties, river rock, pea gravel, plastic liner
  • Tools Used: Saw, drill, shovel, hammer, water pump
  • Safety Tips: Keep electrical connections away from water, use cushioning to protect the liner
  • Water Flow: Designed for slow drainage to prevent mosquito breeding
  • Pet Use: Safe for large dogs, doubles as a cooling spot
  • Cost: Approximately $150 total
  • Time to Complete: 1–2 weekends depending on experience

Summary

Creating a DIY backyard waterfall doesn’t have to be expensive or complicated. With some planning, locally sourced materials, and a little effort, we turned a dull corner into a tranquil retreat for under $150.

Whether you’re looking to relax, attract wildlife, or simply enhance your outdoor space, this project is a rewarding investment in your home and well-being.

This plan is a contribution by [gruaqt]. Project Via Instructables – Get the PDF Instructions here.

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