yes, and the pH can go up significantly depending on what type of chlorine used for shocking. Liquid chlorine (sodium hypochlorite) will cause the PH to increase at a higher rate than that of granular chlorine (such as calcium hypochlorite)
Add sodium bicarb to raise pH. Chlorine will go down by itself or add sodium thiosulfate
Yes, but you should shock it so the water stays clear (do not go in after shocking until the chlorine is at a safe level 1-3ppm)
It really depends on the size of your pool. A normal 25,000 gallon pool would require about 6.5-7lbs. of chlorine to bring it up 10ppm. Go to the link below for a chart on shocking.
Shocking should be done in order to kill the chloramines. It depends on your chlorine level. For residential pools it should be 1.5-2.5ppm. For commercial, chlorine should be 3.5-4.5ppm. If you have just shocked, don't go in the water. The chlorine is probably 10-12ppm and will cause itching and burning. Wait until the level drops to a safe level, as stated above.
It is safe. That just means that the chlorine is not actively killing bacteria. It would be unsafe if there was too much chlorine.
There are enough minerals in the water and the make-up water. You do not need to add more. Maintain water chemistry ~ chlorine, pH, alkalinity and filtration. Ken
Adding a base will make the pH go up (increasing of OH- ions concentration).
Adding a base will make the pH go up (increasing of OH- ions concentration).
A salt water pool is still a chlorine pool, but a weaker form of chlorine if you will! Your PH is affected by the reaction of the "chlorine" with the contamination in the pool. Your salt generated chlorine is working harder to kill the bacteria that it can kill. Therefore there is more "demand" in your pool which will require a more consitant Ph adjustment to keep the chlorine active! The "kill rate" or time it takes to kill, of salt generated chlorine is nearly double that of chlorine. E-coli for instance can live in a chlorine pool for up to 96 hours. A salt pool, as much as 180 hours. YUCK! You should be aware that many common pool bacteria have grown immune to chlorine and salt generated chlorine! Chlorine or salt does not kill Cryptosporidium or Girardia! Science has moved well beyond chemical additon to swimming pools. Check the World Health Organizations- Healthy Pool Guidelines! Ultraviolet is the way to go! Jon La
Adding a base will make the pH go up (increasing of OH- ions concentration).
It,s easy. Just Shock your pool with a chlorine shock and then make sure the chlorine level is where you need it to be. It, more involved if you go from Chlorine to Bacqucil. but why would you want to Bacqucil is so much nicer and easier.
No it goes down