The Speed of a Navigator is adjusted by water flow. There is no adjustment on the unit itself. The more flow through the unit the faster it will go. If the unit moves too fast or too slow proper cleaning may be sacrificed. The proper flow can be achieved using the flow meter that comes with the unit.
Many pools are set up with multiple shut-off valves in front of the pump. These regulate flow from bottom suction lines, skimmer suction lines, and vacuum suction lines. If you have these valves, make sure the valve on the line the vacuum is attached to is fully open and then adjust the flow by closing off the other valves slowly until proper flow is reached. This is where the flow meter is used.
If there are no valves and the Navigator is moving too fast, an in-line valve is also supplied with the unit and can be used to regulate the flow. This valve is installed between the vac hose and the port where the vacuum is connected to the pool (side port or skimmer).
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The Speed of a Navigator is adjusted by water flow. There is no adjustment on the unit itself. The more flow through the unit the faster it will go. If the unit moves too fast or too slow proper cleaning may be sacrificed. The proper flow can be achieved using the flow meter that comes with the unit.
Many pools are set up with multiple shut-off valves in front of the pump. These regulate flow from bottom suction lines, skimmer suction lines, and vacuum suction lines. If you have these valves, make sure the valve on the line the vacuum is attached to is fully open and then adjust the flow by closing off the other valves slowly until proper flow is reached. This is where the flow meter is used.
If there are no valves and the Navigator is moving too fast, an in-line valve is also supplied with the unit and can be used to regulate the flow. This valve is installed between the vac hose and the port where the vacuum is connected to the pool (side port or skimmer).
https://www.hayward-pool.com/pdf/manuals/PoolVac-Classic-XL-NavigatorPro.pdf