Blue Diamond Pool Robot - Tune up

I did the tune up when the PVA "brushes" began to shed bits of blue material into the pool. I probably only needed to replace the PVA, but since I had the drive belts and rollers, I changed them out too. As I recall, that was after about 3 seasons of cleaning. I'm going on 3 seasons again and I haven't noticed any deterioration of the PVA brushes so far. The Blue Diamond is still cleaning like a champ. I'll wait for bits of blue to appear in the pool again, or one of the drive belts to break. Otherwise, I'm happy to let it do its thing!
 
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