Calspas hot tub being used in a family setting

Winterizing Your Hot Tub

In many areas of the country, the temperature drops below 32°F (0°C). We recommend that you always have your spa full of water and running at normal spa temperatures (80°F to 100°F, 26.7°C to 37.8°C). This will help reduce the risk of freezing in your spa and your spa's equipment.

Warning: If you find the need to drain your spa, be aware of the potential of freezing in your spas equipment and plumbing. Even if the directions below are followed perfectly, there is no guarantee that your spa will not suffer freeze damage. Freeze damage is not covered by your warranty.

  1. Open all filter covers.
  2. Remove the filter baskets and filters.
  3. Drain your spa completely as described in the instructions above.
  4. Vacuum water from the spa's main drain fitting with a wet/dry vacuum.
  5. Remove drain plugs from the front of the pumps.
  6. Disconnect the unions from both sides of the pump.
  7. Blow any remaining water out of the jets and equipment area with the wet/dry vacuum.
  8. Cover your spa with a good spa cover and an all-weather tarp to ensure that neither rain nor snow enters the spa

Note:: All manifolds are plumbed in series directly to the main drain (see example at right), making it easier to remove water and reducing the possibility of freeze damage.

winterization