This is the page where the honest answer is the cheap one. Intex, Bestway and other soft-sided pools present three problems that no amount of money solves, and recognizing them saves you from buying a machine that will disappoint you.
Problem one: the floor moves
A soft-sided pool’s floor is liner laid on ground, not a rigid shell. It flexes under a robot’s weight, so the machine sits in a shallow depression it creates itself. Tracked and wheeled drives both lose traction, and heavy machines lose more of it than light ones. This is the core reason a 25 lb inground flagship underperforms a 7 lb budget unit in an Intex pool.
Problem two: there is no wall to climb
A soft wall deflects when a robot pushes against it, so there is nothing to climb. Wall climbing is not a feature that works badly here — it is a feature that cannot work. Any premium you pay for it is wasted, and a machine that keeps trying will spend its cycle failing at the edge instead of cleaning the floor.
Problem three: the liner is thin
Soft-sided pool liners are considerably thinner than inground vinyl. An aggressive brush compound is a real risk. Floor vacuuming with a soft or passive brush is the appropriate mode of cleaning, which again points at the simple machines.
So what actually works
A light, floor-only cordless robot rated within your pool’s area. That is the whole answer. The Aiper Scuba SE is rated to 860 sq ft, which covers a 24 ft round Intex pool with margin, weighs little enough to lift one-handed over a soft wall, and costs under $150. For larger frame pools — the 18 × 32 ft rectangular models — the WYBOT C1 has the runtime and the area rating, and it is still light.
For a small pool, honestly consider a handheld instead. A 12 ft round pool is a five-minute job with a cordless hand vacuum and no machine to store, charge or replace. The handheld roundup covers it.
Water level and the inflatable ring
Soft-sided pools lose level fast and are usually run lower than inground pools. A low level puts the top of the water below the skimmer intake, so floating debris never gets collected and goes straight to the floor. Keeping the level up is the cheapest cleaning upgrade available to a soft-sided pool owner, and a solar skimmer compensates for a weak or absent built-in skimmer.
What not to buy for a soft-sided pool
- Anything advertised on wall climbing. It cannot climb your wall.
- Anything over about 15 lb. Traction and lifting both get worse.
- Suction-side cleaners. A cartridge pump on a soft-sided pool does not produce the flow they need.
- Fine-filtration flagships. Your pool is shallow and your debris is mostly leaves and grass. A 3-micron filter is money spent on a problem you do not have.
