i just purchased a intex 14x48 pool and the swg from walmart online. got my swg in yesterday and expecting pool in soon . i was wondering about ground prep (what to use under pool sand , ... exe ) and what i would need to expect wile assembeling the pool its self. i am mechanically inclined enough to do what i need to do i just dont want no suprises. (tips and tricks)?? also i wanna know what i need to expect from my swg and any tips and tricks from it as well . also what size circuit does it all need to be on.