Speck Pumps WaterWise
Backwash Tanks

During filtration the swimming pool water is pumped into the filter where sediment and dirt are trapped in the sand bed, allowing only clean water to return to the pool.

From time to time the filter needs to be cleaned of this dirt and debris because neglecting to do so will reduce the sand’s ability to filter and, ultimately, simply end up back in your pool. It is called the backwash process. It is when the water is pumped into the filter in a reverse flow and dirt and collected particles in the sand bed are dislodged and washed down the waste line. Backwashing the pool takes 2 – 3 minutes or until the water, visible in the sight glass on the side of the multiport valve becomes clear.

Rinsing is the immediate action that follows a backwash and that is the process of water being pumped through the filter down the waste pipe. This is to rinse and settle the sand before continuing with the filtration process. This needs to be done for 20 – 30 seconds. The backwash and rinse process needs to be done once a week or every 2 weeks depending on season and usage or when your automatic pool cleaner becomes sluggish.