1. The black outline represents a four foot opening vertical or horizontal. |
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2. Lay down a plastic sheet at least two feet larger than the opening, place rocks or sticks on the plastic in reference to the opening. |
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3. Tie a stick or similar object to one end of the rope to act as an anchor. Place anchors approximately 12-18 inches in from each corner. |
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4. Carefully pour foam within the marked area. Be careful not to disrupt the anchored ends of the rope. |
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5. Fill the entire area with foam to a thickness of 2-3 inches. |
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6. Allow foam to cure for 15 minutes or until no longer tacky. |
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7. Place false bottom or bulkhead over opening. |
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8. Cut a notch in the foam to expose the outer edge of the opening. |
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9. After cutting several notches, proceed to trim. |
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10. When trimming the foam, be careful not to cut the ropes. |
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11. To prevent cutting the ropes, pull the rope through the foam until it reaches the anchor. |
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12. Your false bottom or bulkhead is now ready to be placed. If any voids are present between the foam and sidewall, fill the void with plastic packaging, cardboard etc. When using for a front bulkhead, cut the foam horizontally three times to use as a dam. |