Replacement Polaris Leader Hose, 10ft (3900s/380/280/180).
The Polaris Leader Hose needs to be adjusted to fit the pool depth. Measure the deepest part of the pool. Cut the leader at the end that is attached to the feed hose, so that its length equals the greatest depth of the pool. Then reattach the leader hose to the feed hose. The total length of the hose must be between 6" longer or shorter than the farthest part of the pool.