Just seen you are keeping it. What a fab thing to have. I remember tipping barrels of hypochlorite into that pool. It was 8ft deep too so a lot of water. I actually annoyingly do not know the cost to keep it heated, my grandparents pool. In UK I'm not sure if I'd want a pool. (for myself) Personally it would have to be big enough to swim. 10m is very annoying to swim in. You are always turning! I'd have to earn enough to keep it heated/pumped etc. Use it enough to warrant it. Hope you do keep it cause it will look fab. But I know for myself as I'm a swimmer. I just wouldn't get use out of it. (nor could I afford it! ) If you have kids however. It's amazing. It's absolutely worth it for kids. As said. It basically gave me my love of watersports. And now, at 35 I am so thankful I was fortunate enough to grow up with that! Without that I wouldn't have got into swimming, kayaking, scuba etc.