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- Feb 5, 2017
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External overflow, for a 400 gallon tank. Tank builder suggested using spa flex PVC for the drains. What advantage vs disadvantage of this? The reason they suggest is so it does not put strain on the overflow. If not going to use they said I should at least have the tank filled first so the pad movement takes place before the plumbing. What would you do? In addition if I go with the flex how do I attach it with brackets to the stand like the hard PVC.
Thanks
Thanks