Dirt bypassing filter

by Bob
(Salem, OR USA)

We have a Dolphin Nautilus CC plus that has worked great for 4 or so years. Lately it seems the dirt is bypassing the filter somehow. While it picks up some debris and dirt, the water is very dirty after the cleaning (I assume from it being stirred up by the robot) and there is only some debris trapped in the filter cartridges.

Any ideas on what might be wrong?

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Jun 19, 2019
Worn bag

Several ideas. First, the bag might have holes. Second, the bag may be stretched out so much it doesn't adequately grip the mounting flange and debris just goes around it

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