We recommend that you remove the cleaner out of the pool daily. Leaving the cleaner in an unbalanced pool will cause premature wear to the cleaner (like the gummy consistency of your blue cable). Please use the following link to our FAQs for information of the proper pool chemistry and maintenance:
FAQ - Frequently Asked Questions | Maytronics.
Additionally, we recommend that the cable is replaced, not repaired. Please contact our customer care team at 888-356-7446 for assistance.