Structural Grottos

Our structural grottos are FRC castings that are backfilled with concrete over a rebar structure.

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Component System: Simple Grotto

A waterfall that overhangs a seat in the pool makes for a cool spot to relax. Grottos are difficult to build with natural stone or hand sculpture but RicoRock Boulder Columns and Grotto Lids allow for quick installation that will provide a lifetime of enjoyment.


Component System: Mini-Cave

A small cave is a great place to hang out on a hot summer day. The mini-cave has an interior space about 4 ft by 4 ft that can be part of the pool or dry. The steel reinforced concrete core creates an incredibly strong structure.


5 Ft Triple Swimming Pool Waterfall Kit

A grotto waterfall over a pool seat is a great effect and side waterfalls create lots of water action. This is a large waterfall but it only requires 4 ft from front to back. Weight of kit: 3,500 lbs on 2 pallets Heaviest piece: 400 lbs Mortar needed*: 1/2 yd concrete plus 1,000 lbs mortar Recommend flow rate: 80-120 gpm


*Mortar (masonry cement and sand mix) should be the best quality available and is available in 40 and 80 lb bags at home improvement stores. For larger projects it is more economical to mix Mortar cement, type S, with masonry sand (1 part cement to 2-3 parts of sand depending on how fine the sand is.

Epoxy or construction adhesive like that used for concrete blocks can be used to set small rock pieces, eliminating mortar mess. RicoRock® Waterproofing also works as a thin set, eliminating the mortar joint.

For more pictures, view our Creative Artificial Rock Gallery.

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