How to build a small indoor waterfall

Written by melanie l. marten
  • Share
  • Tweet
  • Share
  • Pin
  • Email
How to build a small indoor waterfall
An indoor waterfall is easy to make and very decorative. (Kaypat at

While many people enjoy water gardens and fountains on the deck or lawn, you can bring the sights and sounds of running water indoors as well. Build a small indoor waterfall to improve your home decor and create an oasis in your living room.

Skill level:

Things you need

  • Heavy base container
  • Flat rock or other material
  • Waterproof sealant
  • Waterfall pump
  • Small flat waterfall tube attachment
  • Pump hoses and tubes

Show MoreHide


    Build a Small Indoor Waterfall

  1. 1

    Select a shallow dish or container for the base of your indoor waterfall. This dish should have short sides and a broad base and must be watertight. Depending on the size of the indoor waterfall you plan to make, this base container should still be large enough to hold a pile of rocks and the pump.

  2. 2

    Set the small waterfall pump in the base near the back. Submersible pumps can be in the base container. Dry pumps should have a hose attachment that runs into the back of the base to suck up water. Attach the solid plastic tube to the top of the pump so that it points upward. Set this tube to the appropriate height. An indoor waterfall decoration should not be excessively tall, especially if it will be displayed on a piece of furniture that must hold its weight. Use the supplied fittings to connect to the waterfall top piece to the tube.

  3. 3

    Wash all rocks or other materials thoroughly before use. Place the large, flat rock or other material, such as treated metal or a premade plastic form, upright in front of the waterfall pump tube. Position it so it completely covers the tube. Place a few larger rocks near the base for support and a more finished appearance. If you are using multiple rocks for your design, larger rocks should go at the bottom and smaller ones at the top. Once you have the right layout, use waterproof sealant, such as aquarium-grade silicone, to attach the rocks to each other and to the upright tube.

  4. 4

    Position the flat waterfall adaptor at the top of the pump tube so it lays across the top of the flat rock. It should point slightly downward for best water flow. You can also use flexible tubing or a bent tube adaptor to make the water flow forward over the flat rock. Hide the top of this with a wide flat rock top piece or leave it as is. Attach the extra rock with the sealant as before.

  5. 5

    Allow the indoor waterfall decoration to dry completely before turning it on. Then fill the base tray with water so the pump opening is covered completely. If the pump is outside the base tray, prime it according to the manufacturer's directions before turning on the water fall for the first time.

Tips and warnings

  • Support the large flat rock well with other rocks.
  • Keep electrical cords and plugs away from water.

Don't Miss

  • All types
  • Articles
  • Slideshows
  • Videos
  • Most relevant
  • Most popular
  • Most recent

No articles available

No slideshows available

No videos available

By using the site, you consent to the use of cookies. For more information, please see our Cookie policy.