- 1). Shut off the filter system. When using any electric device or equipment, turn the main unit off before beginning your maintenance. This prevents any risk of damage to the pool, and most importantly, it prevents you from receiving a shock.
- 2). Unbolt the filter tank. Either remove the bolts with a screwdriver on old-model systems, or remove the band that wraps around the multi-port base in newer systems.
- 3). Remove the filter sand. There are three ways to do this. If the filter is small, take out the sand with a plastic scoop.
- 4). Dump the sand out by lifting a larger filter, turning it on its side and tapping it until the sand falls.
- 5). Use a sand vacuum to suck up all of the sand from an even-larger pool filter. The vacuum simply attaches to your ordinary garden hose. This may be the easiest and most effective method for removing sand because almost every grain can be removed.
- 1). Drain the sand filter by unscrewing the drain cap.
- 2). Inspect the filter laterals to make sure they are not damaged or clogged.
- 3). Fill the tank with water. Keep it right under the 4-inch lateral line so it does not overflow when you add the sand. That protects the laterals from clogging with sand.
- 4). Put a cup over the manifold pipe sticking straight up to prevent any sand from falling inside of it.
- 5). Pour in the amount of sand needed.
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