PREPARE BUTTRESS TRENCHES | 4 |
Use the chart on page 6 to find the correct distance from C to C for your pool. Tie a string on each end from C to C, across the leveled area to create the center line of the end trenches. Measure 3 feet from the center line of C towards the inside to determine the center line of the next trench. Repeat this step as many times as needed for your pool size.
Important: All trenches must be 3 feet apart from its center.
| Pool | Pool | Number of | Trench | Offset | |
| Size | Width | trenches | to Trench | from | |
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| Stake B | |
| 12x8 | 8’ | 2 | 1’ 10” | 6” | |
| 15x10 | 10’ | 2 | 3’ 10” | 12” |
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| 18x12 | 12’ | 3 | 5’ 10” | - |
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| 24x12 | 12’ | 5 | 5’ 10” | - |
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| 24x15 | 15’ | 4 | 8’ 10” | - |
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| 30x15 | 15’ | 6 | 8’ 10” | - |
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| 33x18 | 18’ | 6 | 11’ 10” | - |
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| Pool Width |
3FT
Trench
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3FTTrench
3FT
Stake
C
Carefully dig out each trench. Measure from center line and dig 3 inches deep for the Bottom Supports and an additional 1¾” inches for the square area where the patio block must be placed (Do not dig the trenches too large or too deep).
Place the Patio Blocks in the deepest square area.
Place the Bottom Supports in the trenches making sure that the end base is aligned to the edge of the patio block.
Use a carpenter’s level to make sure the Bottom Supports are perfectly level.
12” Offset
6” Offset 15’ x 10’ Pool
12’ x 8’ Pool
Center Stake
“B”
On the 12’ x 8’ pool the center of the first and last buttress are offset to the inside of the pool by 6” from the stake “C” to “C” line.
On the 15’ x 10’ pool the center of the first and last buttress are offset to the inside of the pool by 12” from the stake “C” to “C” line.
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