How do we get the water to fall OVER the rocks instead of going UNDER them?

Watch this video for our waterfall foaming techniques...

Below is a summary of key tips that are outlined in this video.  To watch this video in it's entirety, click on the video - and be sure to leave your comments

The transcript from the YouTube video titled "How to USE AND APPLY Aquascape Waterfall Foam" by Columbia Water Gardens.

This video, by Carl from Columbia Water Gardens, explains how to properly use waterfall foam to direct water over the rocks, rather than letting it flow underneath.

Summary of Waterfall Foaming Technique

1. Purpose of Waterfall Foam

  • Prevent Water Loss: The main purpose of the foam is to prevent water from going underneath the rocks and finding paths that bypass the intended waterfall or stream [00:00:30]. This maximizes the visual and auditory effect of the waterfall [00:00:46].
  • Natural Appearance: When used correctly, the foam is completely hidden[00:01:05] and ensures the water appears to be flowing naturally over the stones [00:00:54].

2. Key Tips for Application

  • The "Rule of Thumbs": The best way to direct the flow is to point your thumbs down where you want the water to go [00:01:58]. The water will follow the path of least resistance, which is typically downward [00:01:46].
  • Foam is a Barrier, not a Dam: The foam is a barrier that prevents water from leaking into voids; it's not meant to look like a dam[00:02:45].
  • Foam Sparingly: Start by applying the foam very sparingly and only in the areas where water is escaping [00:03:13]. You can always add more later [00:03:25].
  • Work Fast: You have about 5 to 8 minutes before the foam starts to skin over and can no longer be tooled or manipulated [00:03:31].
  • Spray Water: A pro tip is to spray a little water on the area before applying foam. Foam cures by reacting with moisture in the air or on the surface [00:03:59].

3. How to Tool the Foam

  • Use Water: Keep a small bucket of water and a sponge or plastic spoon handy [00:04:16].
  • Shape the Foam: Once the foam is applied, mist it with water and use your finger to push it into the cracks and voids [00:04:40]. Wipe the excess off immediately [00:04:47].
  • Conceal with Rock: Take fine gravel or fine sand and press it immediately into the wet foam. This conceals the foam and gives it a natural rock texture [00:05:07].

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