Can I use spa shock with my purezone filter? Holly June 12, 2018 23:05 Updated Follow Yes, however you need to remove your purezone filter for 1 hour while you dose your spa with shock, as this allows the shock to cycle through the system. Related articles Do I need to use spa shock in conjunction with Bio Armour sanitiser? When should I change my Spa Water? Comments 0 comments Article is closed for comments.
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