Polaris 380 Sweep Hose Issues: Getting Stuck, Spraying, and Adjustment

How the Sweep Hose Works

The Polaris 380 sweep hose is the tail-like hose that extends from the rear of the cleaner body. Water pressure drives it in a back-and-forth sweeping motion, pushing leaves, sand, and other debris toward the vacuum tube where it gets sucked into the filter bag. The sweep hose has an adjustment screw that controls how fast and wide it sweeps, and a scrubber on the end that helps dislodge stuck debris from the pool surface.

The sweep hose is one of the simplest components on the Polaris 380, but when it misbehaves, it is one of the most noticeable — spraying water over the pool deck, getting tangled, or getting sucked into the vacuum tube and jamming the cleaner.

Step-by-Step Troubleshooting

Sweep Hose Gets Sucked into the Vacuum Tube

This is a common complaint where the sweep hose gets pulled into the vacuum opening on the bottom of the cleaner, effectively plugging it and stopping debris collection.

1. Check the scrubber: Make sure the opening at the end of the sweep hose is not blocked by the sweep hose scrubber. The scrubber should be on the very tip of the hose. If it has slid up or is positioned incorrectly, the open end of the hose creates suction that pulls it into the vacuum tube.
2. Replace a missing scrubber: If the scrubber is missing entirely, the unobstructed hose end will get pulled into the vacuum tube by the suction from the three jets. Install a new scrubber.
3. Check hose condition: If the sweep hose is cracked, kinked, or shortened from wear, it may not have enough stiffness to resist the vacuum suction. Replace the sweep hose if it is damaged.

Sweep Hose Sprays Water Out of the Pool

An overly aggressive sweep hose whips around so fast that it launches water out of the pool, soaking the deck, furniture, and anyone nearby.

1. Tighten the adjustment screw: Turn off the booster pump. Locate the sweep hose adjustment screw on the cleaner body where the sweep hose connects. Turn the screw clockwise to decrease the sweep motion. Make small adjustments and retest.
2. Replace the scrubber: If the sweep hose scrubber is worn or missing, the hose whips faster because there is less drag on the end. Replace with a new scrubber.
3. Add a sweep hose weight: Order a sweep hose weight (part #B2) from an authorized dealer. The weight attaches to the sweep hose and keeps it lower in the water, reducing spray.
4. Check overall pressure: Excessive spray is often a secondary symptom of too much water pressure to the cleaner. Check wheel RPM — if it is above 32, see the pressure too high troubleshooting guide to reduce overall flow.

Sweep Hose Does Not Move

If the sweep hose hangs limp and does not sweep at all:

1. Check the adjustment screw: It may be tightened all the way. Turn it counterclockwise to increase sweep motion.
2. Check for blockage: Debris can clog the sweep hose port on the cleaner body. Remove the sweep hose and inspect the port for obstructions.
3. Check water pressure: If the cleaner itself is sluggish (low RPM), there is not enough pressure to drive the sweep hose. Address the pressure issue first — see the not moving troubleshooting guide.
4. Replace the sweep hose: A cracked or kinked sweep hose may not transmit water pressure effectively. Replace it if it shows visible damage.

Sweep Hose Adjustment Procedure

The proper sweep hose adjustment creates a gentle sweeping motion — not violent whipping and not limp hanging. Here is the correct procedure:

1. Turn off the booster pump.
2. Locate the sweep hose adjustment screw where the sweep hose connects to the cleaner body.
3. Turn clockwise to decrease motion, counterclockwise to increase motion.
4. Turn on the booster pump and observe the sweep hose in the water.
5. The hose should sweep gently back and forth. It should stay in the water and not launch spray above the water line.
6. Make small adjustments until the motion is correct.

Common Parts That Fix This Problem

• Sweep hose scrubber — replace when worn, flattened, or missing
• Sweep hose — replace if cracked, kinked, or shortened from wear
• Sweep hose weight (part #B2) — reduces spray on high-pressure systems
• Sweep hose adjustment screw — replace if stripped or cannot be turned

How to Prevent Sweep Hose Problems

• Check the scrubber condition monthly. Replace it when it is worn flat or cracked.
• Keep overall water pressure in the 28–32 RPM range to prevent excessive sweep force.
• Inspect the sweep hose for cracks and kinks during routine maintenance.
• Never store the cleaner with the sweep hose kinked or compressed.