ᐅ Pool in the garden? – Need some inspiration!

Not all above-ground pools come with a quality sand filter pump. Sometimes they do, but with the included cartridge filters, you won’t achieve good results.

Even all those sand filters (e.g., Steinbach) are just toys.

I think sand filters are fine for small pools. They have a much smaller volume compared to your pool.
What is the capacity of your filter and what is the total volume of the pool?

My pool is not the issue here.
The amount of sand in the small filters is too low, even for small above-ground pools.
My pool has a volume of 115m3 (4,060 cubic feet). It is either circulated at a low flow rate (20m3/h (7,060 gallons per hour)) for 24 hours or at a higher flow rate (about 30m3/h (10,590 gallons per hour)) for 12 hours.
During pool parties, the flow rate is even higher. We never run it close to the minimum level.
We use a highly efficient variable-speed pump with a magnetic coupling.
The filter contains about 400kg (880 pounds) of sand.
The larger the pool volume, the more stable the water quality. The warmer the water, the more circulation is needed. Only moving water is good water.
Circulating the water three times a day is optimal.

I don’t understand what is insufficient about the sand filter pump.
The pond is 4x2m (13x6.5 ft) and 1m (3.3 ft) deep, filled to about 90%, so roughly 7 cubic meters (247 cubic feet) of water.
Pump capacity is 3 cubic meters per hour (106 cubic feet per hour).
Sand 8.5 kg (18.7 lbs).

We use these convenient cotton pads in our system, designed for 10,000 liters (2,640 gallons). We have roughly 7 cubic meters (247 cubic feet). The pump ran 2 hours daily, around midday. When many people were inside, an extra cycle was added. Even though the setup sits in full sunlight all day, nothing went bad, with very little chemical use.