Above-ground or inflatable pools are pools that are set up freely in the garden.
The preparations are completely straightforward, as no earthworks are required for this type of pool. Nevertheless, a level and stable surface is also a prerequisite here. If the ground is slippery, the frame of the above-ground pool can slip away. The above-ground pools must not be sunk into the ground.
If the above-ground pool has a frame, the frame must be at the same level as the pool floor and therefore level. 
You can find more information on choosing a location and preparing the ground in the relevant operating instructions for your product.

Yes, Intex above ground pools can be operated with salt water. At the end of the season, clean the salt water system with clear tap water and allow the pool to dry completely.

No, floor protection mats are not suitable for preparing the surface of pools. Floor protection mats made from materials such as: PE, are not stable enough. They serve as additional protection and comfort around the pool area. They can be placed under ladders, for example.