Hello and welcome to the forum! When you say you want an 'automatic' cleaner, do you mean a robotic cleaner? Or just something to keep you from having to do it manually?
There are three kinds of pool cleaners, each with pro's and con's:
Suction Side Cleaners ($100-400)
Suction-side cleaners attach to the suction line of your pool’s plumbing system. They clean using suction power to pull debris from the floor and walls. The unit then picks up and deposits this debris and passes it through to your skimmer and pool filtration system.
Pros:
Lower cost
Great for smaller to medium sized pools
Less moving parts
Cons:
Causes additional wear and tear on your pool pump
Continuous use of your pool pump to clean your pool
More taxing on your pool filter system
Pressure Side Cleaners ($400-1000)
Pressure side cleaners use water pressure from a dedicated booster pump and/or pool pump to drive the cleaner around your pool and force debris into a filter bag where it can be collected and easily removed.
Pros:
Less pool filter and pump maintenance
Great for medium to large pools
Many available replacement parts
Cons:
Often requires a second pump or booster pump
Robotic Pool Cleaners ($350-1500)
These cleaners have a self contained filtration system that doesn’t put any additional wear on your existing pool equipment. Another benefit of owning a robotic cleaner is the ease of use. Just plug-in the cleaner’s control unit into an outlet, submerge the cleaner underwater, press the power button, and let the cleaner do the rest! Hate cleaning those filthy pool walls? Most high end models will even clean them for you.Suction-side cleaners attach to the suction line of your pool’s plumbing system. They clean using suction power to pull debris from the floor and walls. The unit then picks up and deposits this debris and passes it through to your skimmer and pool filtration system.
Pros:
Better cleaning & filtration
Energy efficient
Operates quietly
Longer warranties
Remotes and storage caddy’s available
Cons:
Higher prices
Having to remove and insert the cleaner from the pool when needed
Might be excessive for your size pool
*There are a few robotic pool cleaners designed specifically for above-ground pools, that fall below $350, but they are still over $300
Let me know if you have any other questions. And if you know why type of cleaner you are looking for, I am happy to point you in a more product-specific direction.
Also, this is how you set up your signature box