When most people think of the ideal pool, they think of an in ground swimming pool. Little do they realize, however, that the benefits of the Deck-Pool and Olympic-Eagle on ground pools mean that they are not hindered by the many problems that can plague ordinary cheap above ground pools and in ground swimming pool owners. NO TAX Save $$$ Stays Cleaner Naturally Save $$$ No Heater Required Save $$$ In addition to all of this, on ground pools are not prone to the same effects of terrain and ground water as in ground swimming pools. For example: clay soil, sloping yards, rocky terrain, high water tables, and standing water can all wreak havoc on in ground pools, as can the ground upheaval associated with the winters many of us have come to know all too well. Because they are built-on-the-ground, our Deck-Pool and Olympic Eagle swimming pools are not affected by such factors. http://www.aquastarmi.com/in-ground-vs-above-ground-vs-on-ground/