Set up your waste line and vacuum the pool to waste getting the algae and debris out of the pool. Don't let the water level get too low during this process, if it gets more than 6 inches below the tile, stop. Turn the system off and refill the pool and repeat until the whole pool is vacuumed.
All you need to do is bypass the filter and pool vacuum for algae to the waste. However, this can only work if you have a multiport system or a waste line system in your cartridge filter. Vacuum the pool to waste after you have set up the waste, and the debris and algae will get out of your pool.
The last thing you want to do is vacuum algae manually, which will contaminate your filter. Your pool will not clear up. In fact, the chances of your problem getting worse are very high. You'll also need to vacuum to waste when there is a large amount of debris or leaves in the pool, usually at opening.
Use A Pool Vacuum
The most effective tool to get rid of dead algae is a pool vacuum, and there are two ways you can remove algae using a vacuum. The first method is the better (and easier) of the two, and can only be done if you have a multiport system, using either a suction-side or pressure-side vacuum.
A nylon or rubber brush is the correct choice for scrubbing the sides of a soft-sided above-ground pool. A large pool brush makes quick work of the job, but you may need a smaller brush to clean corners. Once the particles have been removed from the sides of the pool, turn your filter back on and agitate the water.
The dead algae is likely too fine to be vacuumed through your sand filter, therefore owners of sand filters must vacuum on the waste setting. Cartridge filter owners can vacuum up the dead algae but need to clean the filters thoroughly after doing so.
If you do have this option, it is highly recommended that whenever you have algae, you will need to vacuum to waste. This option allows you to vacuum the algae up and send it out through the backwash line, avoiding getting algae into your filter sand.
If dirt is reappearing at the bottom of your swimming pool after you've vacuumed it your pool's filter may be working poorly. Pool filters often work poorly because they're in need of cleaning. If you have a sand filter for your pool you need to make sure that the sand is sharp and freshened up.
Set up your waste line and vacuum the pool to waste getting the algae and debris out of the pool. Don't let the water level get too low during this process, if it gets more than 6 inches below the tile, stop. Turn the system off and refill the pool and repeat until the whole pool is vacuumed.
Dead algae turns white or gray in color and falls to the bottom of the pool. If you are using a chlorine shock product with a clarifier, the water will be crystal clear, leaving you a good view of the problem below. The answer is to put your pool vacuum and pump to use to remove the unsightly problem.
Drain/Waste: Opting the drain or waste setting will remove pool water without forcing it through the filter. Backwash: This clears out any debris, dirt and other contaminants that may have accumulated on the filter.
After the hose fills with water, backwash your sand filter for 2 – 3 minutes or until water runs clear. Shut off pump motor and push T-handle back down into locked position. Turn pump back on and note lower pressure.
In the same way that baking soda can be a spot treatment for black algae, household borax does the same for blue and green algae. Simply use the borax to scrub away algae that's sticking to your pool walls, then use the brush to dislodge it. Follow up by vacuuming up or scooping out the free-floating algae.
A shop vac can be used to clean a pool. They are different from your regular vacuums as they can suck up liquids, which makes them good cleaning equipment for pools. They however need to be adjusted for vacuuming water first.
Pools can immediately turn green after shocking when they have metals like copper in the water. These metals oxidise when exposed to high levels of chlorine which makes the pool water turn green. Adding a metal control product such as Zodiac Metal Remover will help to restore the pool water.