Winter closing of the pool
1.
When the water temperature drops below 10 degrees, it's time to winterize the pool. A few days before you do a complete winter closing, you need to ensure that the water's
pH level is between 7.2-7.4 and that the pool is clean from leaves, dirt, and algae. When the pH level is correct, you also need to check the REDOX value (chlorine level), so that
it is at least 700mV. Also measure the alkalinity and adjust if necessary. Add algaecide (also called "winter preservative for pools"). This will prevent algae from forming at temperatures above 10 degrees in the spring. When the above values are adjusted, you should let the circulation pump run for another 4 hours and then measure the values again.
2.
Backwash the sand filter
3.
Turn off the circulation pump and set the sand filter to winter shutdown mode.
4.
Lower the water level using a submersible pump until the water level is below the inlet. If you have a "jetswim," the level should be lowered below it.
5.
Unscrew the winter plug from both the sand filter and the circulation pump and let the water drain out.
6.
Disconnect the heat pump from the power supply and shut off the water supply to the heat pump by closing the bypass connection. Also disconnect the heat pump's connections from the system, unscrew the heat pump's drain plug, and lift one side of the heat pump so that all the water drains out through the connections and the drain outlet. It is absolutely necessary to drain all the water from the heat pump, as even a small drop that freezes can cause the pipes to burst and damage the heat pump. Store the heat pump in a storage room or garage over the winter, or cover it with a protective cover.
7.
Remove the lid from the circulation pump and the basket.
8.
Remove the skimmer basket. Clean the skimmer using a wet/dry vacuum and suck out any remaining water inside the skimmer and the pipe. To create a seal between the vacuum nozzle and the skimmer, you can use a cloth.
When you hear the vacuum sucking at the circulation pump’s opening, it indicates that the pipe is empty of water. If you have a check valve before the pump, it must be unscrewed.
9.
Unscrew one of the connections on the pressure side after the pump (for example, where the electrolysis is connected at the salt chlorinator) and make sure all valves are open (i.e., pointing along the pipe). Close the valve leading to the sand filter. Turn the vacuum cleaner hose so that it blows air into the pipe instead. When you start blowing air in, all the water in the pipe will be pushed into the inlet and out into the pool.
10.
To close the pump cabinet for the winter, the above winter shutdown procedure can be used. For pump rooms located below ground level, the ball valve (which is located just before the pool inlet) must be closed so that no water can enter. If you have a Jetswim, you also need to close the ball valves for it and drain the pipes and pump of water.
11.
Unscrew the Automatic Dosing sensors and place them in a winter storage bottle with winter storage liquid (sold separately).
12.
Place PET bottles or styrofoam on the water surface. This prevents the pool edge from being damaged when the ice expands. Close your pool cover and lock it