Is my third Quick Pool and by far the best! Why? the inflatable ring is much stronger than its predecessors and also even slightly smaller which would appear much more stable the whole thing. When the amount of water (approximately 12,000 liters.) It's advisable to connect a sand filter pump. A big problem I had, however, with the hose connections. The openings in the pool are much too small and unstable, so I had to strengthen from the inside with selbstgebasteleten plastic sleeves. Then plugged duct tape from the outside drum and hoses and secured with clamps. Therefore, there is point deduction, because the manufacturers should even worry. Otherwise, you can not complain at the price. Let's see how long does the pool because the Chlorungen grab the plastic over time to tidy, so the fun usually after two to three years is over ...