WHY UNIVERSAL ROCKS?

Upgrade your pool with Universal Rocks pool kits! They look just like real rocks, come in many styles and sizes, and are super easy to install. Plus, they're lightweight, last a long time, and need very little upkeep. Each kit includes, a main water feature and two side rocks, and hooks up directly to your pool equipment. Get started today and enjoy free shipping too!

Pool Waterfall Installation Guide

LEARN MORE ABOUT POOL KITS!

Lightweight: Our faux rocks are significantly lighter than other materials, like real rock, stone, resin and cement rock.

Easy Installation: Decorative rocks are designed for quick and simple, hassle-free, DIY-friendly installation. Enjoy your oasis in less than a day, no heavy equipment or prior experience needed!

Durability: These artificial rocks are built to accommodate significant weight, withstand extreme hot and cold temperatures, hail and won't chip or crack like fiberglass. It's basically truck bed-liner - almost indestructible!

Low Maintenance: Constructed from high-quality materials, they require minimal upkeep and can be easily cleaned with a pressure washer unlike foam rocks to remove algae or calcium build up.

Realistic design: Life-like appearance, molded from real rock and stone. Colored with embedded crushed rocks and sands - no paints or stains are used!

Simple Connection: Compatible with standard PVC plumbing, our waterfall kits easily integrate with your existing pool equipment, by connecting to the outlet(s) built into the waterfalls.

Free Shipping: All pool rock decor ships FREE!

Special Considerations:

After chlorinating or shocking your swimming pool, do NOT run your waterfall until it is safe to enter. Doing so can result in a bleached effect that could potentially ruin the finish of your feature. Normal levels of chlorine, however, will not affect your waterfall.
When selecting the perfect waterfall kit for your pool, be sure to consider its curvature. Our water features have straight edges, and may not fit flush to pools with distinctly round edges. If you're looking to accent the look of a more convex curved pool, take a look at our Grotto and Sunbake Falls Waterfalls. See example here They always work on straight edge pools
Please note that Universal Rocks does not provide tubing with these units, and recommends using flexible PVC pipe during installation.
Three-way valves are recommend to turn your waterfall on and off and control the waterflow.
Submersible pumps are strongly discouraged to operate our water features on your swimming pool due to safety reasons.
All pool waterfall kits, will arrive on a pallet and be dropped at the end of your driveway by a freight carrier.

Not sure what pool pump will run your waterfall? Pick your waterfall, tell us a little about your plumbing, and this calculator estimates the flow (GPM) and total dynamic head (feet) your pump needs to hit. Compare that point to your pump's published performance curve, or to the typical pump ranges on the chart.

Your setup

Rough measurements are fine. Results update as you type.

Waterfall

What pump will run the waterfall? The pool's filter pump (shared) Its own separate pump

Pool size Some water keeps going to the pool returns while the waterfall runs, so we add that flow in. We assume the 3-way valve is turned toward the waterfall. Not sure of your pool size? A typical backyard pool is 15,000 to 20,000 gallons.

Pump to waterfall Pipe length, feet

Extra height Feet, if the waterfall sits higher than the deck

Pipe size

90° elbows 6 is a simple, short run. Add one for every 90 between the pump and the waterfall, and count two 45s as one 90.

Water also passes through 3-way valve (recommended)

Filter (always in line on the pool pump) Heater or heat pump Salt cell

Your pump needs to deliver about

How much water typical single speed pumps would send to your waterfall

"Good" is inside the recommended range. "Full flow" reaches the top of the range. "Plenty" means more water than the waterfall needs, so use the 3-way valve to dial it back.

On the chart, the circles show where each pump would run with your plumbing: green if it reaches the recommended range, orange if it falls short. Tap a pump in the chart legend to hide it and zoom in on the rest.

This is an estimate based on standard PVC friction loss tables and typical equipment losses, including extra room for a filter that is partway to needing a cleaning, with a 10% safety margin added. When the waterfall shares the pool pump, we assume about three quarters of the pool's normal filtering flow (one turnover every 8 hours) still goes to the returns, with the 3-way valve turned toward the waterfall. Every pump brand performs differently, so the "typical" curves are general ranges, not a specific model. For the best answer, find the performance curve for the pump you have or plan to buy and check that it reaches your point. Variable speed pumps can usually be dialed in to match. A 3-way valve lets you fine tune the flow after installation.