The Venting Gap: Why Airflow Determines Bounce Quality | LOWLINE
That 12–18 inch gap between the frame and excavation wall isn't just clearance — it's what makes an in-ground trampoline bounce like an above-ground one.
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- Content focuses on drainage, safety, soil, HOA, maintenance, or concealment decisions.
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Primary intent: Educational query that supports a service cluster and answers a specific planning objection.
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