[header] How to prepare your spa for winter [title] Add whirlpool rinse 24 hours before you drain the spa. [step] Whirlpool rinse removes & dissolves accumulated bath and body oils that build up in the plumbing lines, and impair proper jet action. [title] Drop in the submersible pump to remove the old water from the spa. 
[title] While the submersible pump is removing the water, reach into your skimmer and remove your filter. [step] Place your cartridge filter in a bucket of water and filter clean solution, which will degrease your filter.