make sure your alkalinity is correct first before adjusting the PH. you can use alkalinity up to increase this.
Or
Use baking soda. Your level of alk. should be between 80 &120; pH =7.4 - 7.8. You need to check these levels about every 20 min. & keep adjusting until levels are close to the minimums above. Check next day to see if chemistry has stabilized. Adjust as need.
k
:
1. Get your alkalinity 80-100ppm, not higher.
2. pH is 7.6-7.8, and no lower
3. There's a technique you need to use to raise/lower your pH/alkalinity, but first test your fill water, both pH and alk.
Most water companies run their pH about 7.2. If it's there, leave it alone because it will come up naturally as the pools gets used.
Go to the links below.
You should not re-enter the pool until the chlorine level is 3ppm or less on your test strip, however long that takes. Chlorine is a known carcinogen and high chlorine levels are linked to many respiratory diseases.
try adding cyanuric acid (stabiliser) it will stop the the chlorine fromdissipating so quickly as a result of sunlight.
Yes definitely. it is wise and can save you up to 80% of chlorine required by adding stabiliser (cyanuric acid).
99.99 percent
1-5ppm
Adjusting the chlorine content will almost certainly affect the pH, so it would be simpler to get the chlorine level correct first and then titrate to the proper pH.
I'm not sure what you mean. If your qeustion is how long do you have to wait to swim after adding chlorine, it really depends. If you're adding chlorine to bring the level up to 2.0 or 3.0ppm, then wait minimum 1 hour before swimming, and be sure the filter is on. If you're shocking the pool and bringing the level up to 10-12ppm, you need to wait until the pool reaches a safe level as stated above.
Cl is an abbreviation for "chlorine" you should check free chlorine and total chlorine for comparison.
If the chlorine level is correctly maintained this should not be a problem.
Do you mean that adding a little chlorine made the reading go from 0 to a higher level? You should shock your pool once a week with 1L of liquid chlorine per 10000L of water in your pool. You need to add enough chlorine to break apart the combine chlorine (the combination of chlorine and dirt which doesn't sanitize.) If you don't add enough at once, it will be used up and the chlorine reading will remain low.
If you are getting a low reading of chlorine in your above ground pool, you should add the appropriate amount of chlorine to get it back to the correct level. This is important to keep your pool running at maximum abilities.
You only need to shock the pool if there is visible algae, or if the ppm of total chlorine is higher than the ppm of free chlorine. Generally, a level of 2-4 ppm chlorine is all you need to keep your pool sanitary. Let the level drop to that on its own, or use sodium thiosulfate to drop it quickly if you notice itchy skin from excessive chlorine.