Spa antifreeze

1. Turn off the power. Empty the tank completely.
   
2. Purge the pipes: blow through the jets/suctions (water vacuum/blower).
   
3. Pour antifreeze into the jets, suctions, drain and valves (see label quantities).
   
4. Install plugs if provided, protect the equipment (cover in good condition, cover).
   
5. Close the cover. The spa is ready for winter.

As a rule of thumb: ~4 L per 1,000 L of nominal spa water.

Spa 1,000 L → ~4 L of antifreeze

Spa 2,000 L → ~8 L of antifreeze

Purpose: To protect the bottom of the pipes and siphon traps, not to fill the entire system. The exact amount may vary depending on the plumbing; always follow the product label (RV antifreeze/propylene glycol, non-toxic). Never use automotive antifreeze.