We recently bought a home with a huge pool, 42,000 gallon pool, which we've been remodeling for the past two months, upgrading plumbing, replacing a retainer wall, all new decking, as well as replacing concrete on all backyward areas, and building a BBQ. We've spent a ton, as well as extras that have come up. We're almost done, great contractor, but he's trying to convince us to fill it in a bit to make it less deep. From 9.5 to 6 or 7 ft he says will save us tons in the coming years on heat and maintainence costs with less water. My husband has had enough and doesn't want to spent a penny more as this will cost at least 7K more. Is it a real concern to make it less deep resulting in less water, perhaps 25 or 30,000 gallon which is more manageable to heat and maintain? I have all new top systems installed, new skimmer, new return lines etc. But I just am not sure about this one issue. My kids ages 4, 9, and 11 love to jump off the deep end, and dive (no diving board). Any help would be appreciated. Thanks.