Can you give me a comparison between the GW7700 and the GW9500? Will either unit work on a vinyl liner pool?
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The main differences between these two cleaners are as follows:1. The Pool Shark cuts a 12" cleaning path and the Great White cuts a 15" path 2. The Pool Shark uses rubber squeegees where the Great White uses bristle type brushes. Both units may be used on a vinyl liner, gunite or fiberglass pool.
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Is this for inground pools or can it be used for above ground also?
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We would not suggest the GW7700 Sand Shark pool cleaner on an above ground pool as this cleaner can be too heavy for the liner and pull the liner from the track. We would suggest something like the PureLine Aqua Fusion Pool Cleaner
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Is it automatic or need plugged in? Does it climb pool wall?
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This cleaner has its hose connect to your skimmer and uses the suction from your pool pump to vacuum up debris. It really depends on how powerful your pool pump is weather it will climb the wall or not. This cleaner does not have an electric cord which is plugged in.
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