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.
Baking Soda and Green, Blue, or Yellow Algae
You'll need to use an algaecide to kill the algae and superchlorinate your pool to clear the water. After this treatment, test your pH and alkalinity and add baking soda to raise alkalinity to at least 100 ppm and pH to between 7.2 and 7.8.
Unlike chlorine, vinegar is non-toxic and can be used to get rid of algae in pools. It also destroys mold, weeds and other microorganisms.
Just like you run vinegar through your coffee pot to get rid of calcium buildup, white vinegar can wipe away this eyesore in your pool. Mix a 50/50 solution of vinegar and water, dip a sponge or soft cloth into it, and scrub that residue away.
If you need to mildly shock a 30,000-gallon pool by raising the free chlorine concentration to 5 ppm, you need 2.5 gallons of bleach. To raise it to 10 ppm, you need 5 gallons.
When chlorinating wading pools, use 1/8 cup per 100 gallons of new water. Mix required amount of Clorox® Regular Bleach2 with 2 gallons of water and scatter over surface of pool. Mix uniformly with pool water. Empty small pools daily.
Algae will remain in your pool after shock if you've had insufficient chlorine and an overabundance of metal elements in the pool water. Therefore, to start the cleaning process. Remove all the debris from the pool with a leaf net and then let the smaller dirt fragments settle.
The solution to maintaining a clear pool is to use readily available liquid bleach as your chlorine source. Chlorine bleach, as discussed above, is not bound to a stabilizer, so when you add chlorine bleach to the pool, it will go right to work killing microbes and sanitizing.
While the green algae aren't harmful, the bacteria that feed on the algae can cause issues. When you swim in green water, you expose yourself to algae that host bacteria. Swimming in green water could cause bacterial infections on your skin, and you could get sick if you ingest algae-filled pool water.
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.
Baking Soda (Sodium Bicarbonate) is used to raise alkalinity and also slightly raise pH. And Soda Ash (Sodium Carbonate) is used to raise pH and slightly raise alkalinity. For example, getting a pH reading around 7.2 to 7.6 in 10,000 gallons (37,854 liters) of pool water would take roughly 21 pounds of baking soda.
ADD POOL CLARIFIER
The change in your pool water colour means that you have successfully eliminated the algae and can now clean it out of your pool. If your water is still green, wait another 24 hours and redo the steps from Days 1 and 2.
The free chlorine levels might be low.
But be careful—adding too much chlorine in pool water can cause those metals to oxidize and turn the pool a different shade of green.
This may take 3 to 4 days. RUN THE FILTER 24 HOURS A DAY. You must maintain that high level of chlorine. If the chlorine level is allowed to fall, the algae will begin to reproduce and proliferate, and it will take even longer to kill.
What can you use instead? Bromine — considered a safe substitute for chlorine. Looks for BCDMH tablets, which are typically 66% bromine and 27% chlorine. If unable to find, you can use just bromine but it may leave the water a dull green color.
Use a pool brush to vigorously scrub any pool surfaces covered in algae, including the walls, floors, and steps. Apply a green algaecide according to the directions on the label. Let the water circulate for 24 hours, then brush the pool surfaces again. Vacuum or backwash to remove any remaining dead algae.
Many of us use household bleach, a common brand name being Jik, to clean our homes. Bleach itself is a diluted solution of sodium hypochlorite and it is this ingredient that can be used to lighten, sanitize and disinfect.
Common unscented household bleach (sodium hypochlorite) works well to shock a pool.
Add chlorine if needed to keep your reading between 1-1.5ppm. Once you've obtained a good reading, you can usually maintain your chlorine levels by adding chlorine tablets once a week.
Add the bleach to the pool at night, because it quickly gets degraded by sunlight. Pour it into the water as you walk around the perimeter of the pool, and then circulate the water for six to eight hours. By morning, the algae should be dead -- but instead of being green, the water may be cloudy.
Relax! Using vodka gives your pool a deep clean besides disinfecting it. However, a simple answer by pool research experts to the question “does vodka really clean a pool?” is no! This is because vodka would cause a chemical imbalance in your pool, leading to severe issues in the future.