My wife and I have recently started pricing pools. We have met with 3 different companies. The prices and equipment are varying. One company wants to do a sand filter and a gas heater (we need to heat it) the other two are want to do d.e. filters and heat pump for a heater. The variance in price from one to the next is almost $9000! They will be inground steel pools with the vinyl lining, all the same pool,i guess, so what the heck do i do? the cheap one sounds almost too good to be true and i also dont want to get ripped off!