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5 Below-grade or partial in-grade installations
5.1 Characteristics
When recessing the swim spa all or part way below ground level, a concrete base along with a concrete retaining wall to
hold back the earth is required. This forms a Vault or ’bunker‘, in which the swim spa is placed.
Call before you dig! Please make sure you have any permits in place that are required from your municipality.
Jacuzzi
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messy and unreachable for servicing while could fatally warp the steel frame!
5.2 Base of support
Please refer to the chapter 4 of this guide.
5.3 Crawl space
It is recommended leaving a ~ 60 cm wide crawl-space around the entire unit to ensure adequate accessibility on the all
sides for service access. At the Equipment end it is recommended to have a ~ 90 cm crawl space for work space.
5.4 Ground water
The vault will be the lowest part of your backyard and therefore good drainage is essential. A properly designed drain
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