I am in the process of burying a Radiant Metric GT pool. I am sort of acting as the general contractor. The dealer is installing the pool, essentially setting it up in my hole, but I am doing everything else. Both the dealer and manufacturer are stating there are no special requirements for backfilling this pool, and regardless of the backfill it will still be warranted. I have mostly clay soil, should I just backfill with that. My excavator said he could mix the clay with some sand and use that as backfill. I am not planning on doing any sort of decking till next year. Also, in the inground install instructions for the pool, it says they recommend doing a concrete collar around the base of the pool for inground installs in cold weather. Again, the dealer is saying it is not necessary and they said they talked to Radiant, who said it was only a recommendation but really not necessary. The pool company wants about $1000 to do the collar which seems steep. It is only 1ft wide and 6-8 inches deep. Should I do the collar?
Here is what it says about the collar, I am not doing the walk in steps.
Check with local building codes before installing your Radiant Metric pool inground. If the pool
is to be installed in geographic areas with winter ground freezing, Radiant Pools recommends
a 6” to 8” concrete collar around the entire pool (fig.1).
If you are installing a walk-in step, Radiant Pools REQUIRES that a concrete collar be poured
around the entire pool (fig.2). Add 2.5 yards of concrete to the ‘estimating concrete requirements’
for the concrete around the step and A-frames.