Our structural grottos are FRC castings that are backfilled with concrete over a rebar structure.
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Loveseat Grotto Swimming Pool Waterfall Kit
This kit features steel reinforced construction for maximum strength. Side boulders can be rotated as needed; designed for a 3-4 ft wide seat area. Weight of kit: 1,500 lbs Heaviest piece: 300 lbs Mortar needed*: 1/2 yd concrete plus 300 lbs mortar Recommend flow rate: 60-80 gpm
Component System: Simple Grotto
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.