The pool filter filters the water from the pool. The water is pulled from the pool via the two skimmers and the drain on the floor of the deep end, is filtered/heated, and returns through the return jets. The crud that gets filtered will clog the filter and backwashing the filter cleans it.

Diamanti backwashes the pool most service visits. If the pool is recovering from some sort of imbalance, the filter may clog up earlier. The main problem this causes is that the heater will refuse to work if the water flow is too low, and backwashing should clear this.

• The filter is the big egg-shaped thing the same size as the heater.
• The pump is a small device in front of it which makes the noise, and has a control panel under a flip up cover.
• The multiport switch is a big handle on a circular face that has multiple positions, you can't miss it.

1. Unfurl blue hose attached to filter and position it away from pool as far as it will go
2. Open the cover on the pump control panel and turn off pump by pressing Start/Stop button. Wait for pump to stop.
3. Move multiport handle clockwise from “Filter” to Backwash“ by pushing down on handle and turning.
4. Turn on the pump
5. Water will start ejecting from hose. Watch the clear bubble port on the filter. It will turn cloudy then clear. This shouldn't take longer than a minute or so.
6. Turn off the pump
7. Move multiport handle clockwise from “Backwash” to “Rinse”
8. Turn on the pump
9. Let it run for like 30 seconds, the water in the bubble should be clear.
10. Turn off the pump
11. Move multiport handle clockwise from “Rinse” to “Filter” (the original position)
12. Turn on the pump
13. Squeeze the hose from the filter side to the end to get the water out and roll it back up the way you found it

It's very important to keep an eye on the water level to make sure it doesn't get too low. Ideally the water level should be higher than halfway up the skimmer. If it looks like the water getting too low to enter the skimmer, you need to take action.

You can run the garden hose into the pool and leave it on for an hour or two. That should raise the water a little bit. It's probably best not to leave the water on for longer each day because the well needs time to recharge, especially during hot spells. The other option is to call Diamanti and they can order pool water to be delivered, although this can take a few days and is a little expensive.