The average SIP garden growing in the Pacific North West, requires 8-12 reservoir fills per year and can conserve up to 80% of the water compared to traditional top watering techniques. We recommend monitoring your garden at least once a week during the growing season, just to make sure your garden is growing well even if your reservoir doesn't need filling. However in Vancouver, the following is an average reservoir fill schedule, adjust for warmer climates:
April: 1x
May:1-2x
June: 2-3x
July: 3-4x
Aug: 3-4x
Sept:1-2x