By Doug Gillespie
5. Plan For Maintenance Access
At some point, either you or a service professional will have to perform some type of maintenance on your hot tub. Good service access can save lots of headaches in the future (not to mention lots of expensive repair bills).
For example, the average hot tub has more then 3.2 km (2 miles) of plumbing, which is located on all four sides of the tub. As such, in deck installations, consider notching the hot tub in the deck as opposed to surrounding it completely. This will allow for access on all four sides if necessary. For inground hot tubs, be sure to create a service hatch on one side with enough room for a technician to crawl around the hot tub to service it.
6. Choosing An Appropriate Base Material
If you have any doubts about what to use as a base for your hot tub, consult an expert. For an above-ground, standalone installation, a concrete pad or patio stones with 609 to 914 mm (2 to 3 in.) of crushed stone should be enough. On the other hand, if you are placing the hot tub on a third-floor deck that is perched over the main family eating area, don’t take the hot tub salesperson’s word—consult an engineer.
This is 3 of 6 in A Guide to Hot Tub Installation