How to Vacuum Your Pool and Backwash the Filter

This article attempts to explain the steps required to vacuum out a pool. There are different kinds of filtration systems for pools, such as cartridge filters, sand filters, and diatomaceous earth (D.E.) filters. The instructions here assume that you are using either a sand filter or D.E. filter, though some cartridge-based systems may be similar.

EditSteps

1. Turn off skimmers as noted on pipes.
   
2. Start by attaching the vacuum hose to the vacuum head.
   
3. Flood hose with water before placing adapter in skimmer to avoid loss of prime. Some skimmers require you to remove the basket before you can attach the hose, so be sure to do this if necessary. Holding one end of the vacuum line over the return port is a good way to bleed out the air trapped in the line.
   
4. Vacuum per manufacturer instructions. Basically, move very slowly and methodically while vacuuming. Follow a grid pattern to ensure all areas of the floor and slopes are cleaned.
   
5. Disconnect the hose from the skimmer and remove vacuum equipment.
   
6. Turn off the pump.
   
7. Clean the skimmer basket and hair basket. The hair basket is the one located at the pump.
   
8. Turn filter handle to the "BACKWASH" setting, and then turn on the pump.
   
9. Continue to let the pump run until the water in the sight glass on the filter is clear.
   
10. Turn off the pump and set filter handle to "RINSE", and then turn on the pump for about 60 seconds.
    
11. Turn off the pump and return the filter handle to "FILTER".
    
12. Turn on pump and resume normal use of the pool.
    

EditVideo

EditTips

• Never turn the filter handle while the pump is running. It will damage the gaskets inside of the filter, forcing you to replace them.
• It is always a good idea to vacuum first and then backwash after. Backwashing removes the gathered dirt and debris from your filter. If you don't backwash, your filter will slowly start to get clogged, causing too much pressure to build up while it's running. If the filter is under too much pressure, it could crack or explode.
• To avoid strain and damage to pumps and filters be sure to manually scoop out as much organic debris as possible before vacuuming. This is especially important when opening the pool in the spring.
• Run a garden hose into the pool when you plan to vacuum on "Waste". By raising the water level to the top of the skimmer mouth, you will have longer to vacuum, while keeping the water in the optimal range.
• If you vacuum a very dirty pool on "waste", it is possible to have organic material like leaves become clogged in the vacuum line, the pump strainer basket or even in the pump impeller.
• During vacuuming, be sure to keep an eye on the flow of the water returning into the pool, as well as the amount of suction you're getting. If either of these start to diminish, you will have to shut off the pump and clean out the hair basket.
• Some D.E. filters will require you to add more D.E. after backwashing. Check with your manufacturer for instructions on when and how to do this.
• If the pool is extremely dirty, it might be a better idea to "vacuum out to waste" instead. This is when you set the filter to the "WASTE" setting before vacuuming, causing the system to bypass the filter and remove the water from the pool.
• A good way to flood the hose with water at the very beginning is to place the vacuum head over the return outlet. This will fill the hose easily without having to try to hold the hose under whilst contesting air pockets!

EditWarnings

• If you don't have a waste function on the multiport valve- such as a standard push pull filter flow valve- do not vacuum the pool in the backwash setting as this will push debris into the inside of the filter cartridge on certain model filters.
• While backwashing or vacuuming out to waste, be sure not to do not drain the water level below bottom of skimmer. Fill the pool if necessary.

EditRelated wikiHows

• Diagnose and Clear Cloudy Swimming Pool Water
• Determine Which Pool Algaecide and Pool Clarifier Is Best for Your Swimming Pool
• Properly Maintain Swimming Pool Water Chemistry
• Diagnose and Remove Any Swimming Pool Stain

EditSources and Citations

• http://www.PoolPump.ca - Source information provided in part. Used with permission

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