When a pool is vacuumed with the valve in the "backwash" position, the dirt ends up underneath the bed of sand. The pool will clean up nicely like this...... until the valve is turned back to the normal "filter" position.
To begin vacuuming your pool:
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.
Using the filter setting will save water, but you have to backwash the filter when you are done. Vacuum to waste when you have a lot of debris in the pool that you don't want going into your filter.
Vacuuming to WASTE can only be accomplished if a multiport valve controls your pool filter system. This position bypasses the filter and sends all the unwanted debris through the waste line. Note: Vacuuming to WASTE drains the pool, so keep an eye on your water levels.
The Filter Method
Can you vacuum algae out of a pool using this method? Yes. Merely follow the normal vacuuming process. Check to see if dead algae or any dirt is flowing back into the pool.
Can You Backwash Too Much? If you backwash your pool too much i.e. time duration and/or close frequency then yes you can cause a lot of problems. Some problems that can arise from backwashing your sand pool filter too much are: Loss of water – 500+ litres of water can be lost in each backwashing cycle.
For routine vacuuming, the filter valve is left in the normal “Filter” position. This directs dirty vacuum water through the pool filter to remove the contaminants, then conveys filtered water through return lines back to the pool. The "Filter" setting is used for light to moderate levels of pool sediment.
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.
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.
Vacuuming to waste is helpful when there is a lot of debris in the pool, especially silty dirt, that clogs up the filter quickly, requiring you to stop vacuuming to backwash or clean the filter.
Whenever the filter fills up with the dirt/debris it reduces the flow of water to your pool. Low flow = poor circulation which will lead to algae in the pool. Bottom line, the filter must be backwashed on a regular basis to ensure that your pool water is clear.
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.
You need to leave the skimmer basket in under the skim vac plate, this allows the skimmer basket to catch your debris, and you can empty it quickly without having to turn your pump off and on like you would without it. 3. Vacuuming your pool.
Excessive levels of pool chemicals can cause your water to become cloudy. High pH, high alkalinity, high chlorine or other sanitisers, and high calcium hardness are all common culprits.
Now, here answers the question earlier: do you leave skimmer basket in when vacuuming pool? YES, you need to remove the skimmer or strainer basket before attaching the open end of the hose to the inlet. Finally, plug the open vacuum hose into the suction port.
Reasons why dirt might return to your pool through the jets during vacuuming or after backwashing include not rinsing after backwashing, a damaged spider gasket, damaged filter or the pool pump being too large for the filter.
Open the air bleeder assembly on your filter and turn pump on. Watch the pressure gauge for spikes. After the hose fills with water, backwash your sand filter for 2 - 3 minutes, or until water runs clear.
The size of your pool, the efficiency of your pump and filter, and how dirty your pool is are just some of the factors you need to consider. Nevertheless, most pool cleaning professionals would advise against running a pool pump for more than 8 hours a day.
Often, excess sand gets into the wrong places when refilling and will sand to come out into the pool or out of the backwash hose. But it should go away after a few runs. In general, you shouldn't be losing sand from your sand filter. Nor should any sand be coming out during backwashing, rinsing or filtering.
As a general rule, you should be backwashing your pool about once a week or in conjugation with your scheduled maintenance. Another industry standard is to backwash when your filter's pressure gauge reads 8-10 PSI (pounds per square inch) over the starting level or “clean” pressure.
As a rule of thumb, regardless of if you have a sand filter or DE filter, you should backwash your pool about once a week during swimming season. The optimal time is right after you vacuum the pool. If your pool has had a lot more use than normal, it may be necessary to backwash twice a week.