Robert,Jim, thanks for the reassurance on flow. As for that Nature2 system, we told the PB to put a stub in the mineral insert (as per advice from this forum). We have a 14,000 gallon fiberglass pool with no water features, and the SWG. A lot of folks on here seemed to like the Jandy system w/o minerals, so we went with that.
That's what we think too. Our situation is worse than McLovitz's in that we have unknown quantities of excavated dirt layered into the backfill. We also may have a gravel-less gap under the pool when they dragged it sideways (due to placing in wrong location).Should be compacted 3/8"s diameter gravel only all the way to the top. that dirt will filter down and leave voids.
Just my 2 cents!
As per my signature, it's a "Leisure Pools" pool shell. I would assume that if I showed the company these images and video that they would consider our warranty voided. But they do not control the installers, so our only recourse is to deal with the installer.Who makes the shell? I am about to get a Viking pool installed and I was able to reach out to the manufacturer and they sent me a very detailed installation guide. It specifies very clearly what needs to be done otherwise the warranty is voided. Look at the contract you signed for verbiage regarding warranties.