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"Standard" for things like that is local,, not national. You could try registering at one of the larger forums, like Trouble Free Pools, but your chances of getting a knowledgeable and reliable answer to a question like this is poor. The problem is that it IS likely that you WILL get answers, just not ones that are trustworthy local answers.
A better approach: ask your builder to show you a couple of other pools that were built that way. If he can't or won't . . . that's not proof, but it's good enough reason to be suspicious, investigate more, and explore your options for recourse.
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