How to winterize a Hayward sand filter during the pool closing
Here is how to winterize a Hayward sand filter during the pool closing by the manufacturer recommandations :
- Completely drain tank by unscrewing drain cap at base of filter tank. Leave cap off during winter.
- Depress Vari-Flo control valve handle and rotate so as to set pointer on valve top between any two positions. This will allow water to drain from the valve. Leave valve in this "inactive" position.
Don't hesite to call your pool specialist Poseidon to do the closing of your pool.