An above ground swimming pool is much more inviting to get into when the water is clear and the bottom is free of dirt. A good filter and a good pool cleaner are the basics to keeping your pool in top shape. You cannot enjoy your pool if you are a constant slave to it or if it is always a dirty mess.
The filter system is the starting point for a clean pool. It should be a good quality system designed to handle the water capacity of your pool. My preference in most cases is a 1 hp sand filter. Extremely large pools may need a 1 1/2 hp. With that big of pump I would recommend two returns to allow proper water flow.
Using a vinyl shock treatment once every couple of weeks is another good way to keep your pool water crystal clear. Proper chlorine and ph balance is important also.When it comes to getting the dirt off the bottom, be careful. Pool vacuums and automatic pool cleaners are the biggest causes of holes in vinyl liners. Hand vacuums are the quickest way of cleaning a pool. They can also leave hundreds of little pinholes around the outer edge of the pool if you use the pool wall to guide the vacuum head. Always stay at least 6" away from the side of the pool when cleaning. Automatic pool cleaners are nice to have and will, for the most part, do a good job. The biggest problem with all the models I've seen is that they get lazy a lot. They spend way too much time cleaning one little section of the pool. They either get their hose tangled or the filter current stalls them at the far end of the pool. Spend some time working with the filter return to angle the water flow for the most effective operation. It's also a good idea to fill some 1 gallon milk jugs with sand and put under the ladder to keep the cleaner from getting stuck. The last suggestion would be to limit the amount of time the cleaner runs. Running it just when the pool is dirty is better than running it every time the filter runs. They do, over time, wear on the liner. The more time they spend in one place the more wear that occurs on that area.
Leaf skimmers are a good idea to have on hand for cleaning up after a storm or just removing that unwanted bee. They come in two flavors. One that is attached to a short 5' pole and ready for use at all times or the one that interchanges with your vacuum head on the long pole. I think the short ready to use model is all you would ever need and it's always handy for the kids to use.