Welcome to our forum.
WD40 welcome......since it's going in the ground what are your plans on keeping water out of the hole?my brother has a semi-inground tub in Colorado, but he designed his where gravity keeps the hole mostly drained, but he also has a pump in the hole in case of water build-up or heavy rain.i love the look of in-ground, in fact I really wanted an in-ground tub because I generally do not like the look of most hot tubs....but after they came out with the rock looking siding for hot tubs I decided it would be much easier than in-ground.there are some issues involved with in-ground, but if money is no object and you do it right.....it is really nice.here's my brother's in-ground:short video:http://s7.photobucket.com/albums/y273/ItsZep/JulyAug07/?action=view¤t=JulyAug07074.flv