Thank you. You have a vinly liner pool. And the 42502 liters is a little over 11000 gallons of water.
You can start this in the morning. Let the pump run all night and if it needs to be backwashed in the morning, do that first.
NOTE: The amount of 75% Cal-hypo needed to shock your pool is 16 ppm.
2oz of 75% shock will raise the chlorine level in your pool by 1 ppm.
- Take the tablets out of the skimmer
- If the pump isn't running, turn it on and let it run continuously until the pool is clear, backwashing the filter when the pressure indicates that it should be backwashed.
- Using the test kit that has liquid reagents, get a fresh chlorine number.
- Subtract the number you got from 16
- Multiply that number by 2. This will give you the total amount of shock in ounces you need to add to the pool to get the chlorine to 16 ppm.
- Dissolve the chlorine in a big bucket of water and pour it in the pool in front of the return
After 2-3 hours, vacuum the pool, backwashing the filter when the pressure says you should.
In the evening, brush the pool walls. Then take a new chlorine reading, subtract that number from 16, multiply that number by 2 and add that much chlorine to the pool.
The next morning, take a fresh chlorine reading, bring the chlorine level in the pool back to 16 and start the cycle all over. This will make sure all of the algae and any other organics are killed.
Vacuum the pool daily, in the morning, and brush the pool walls daily, in the evening. This will clear the pool up.
When the chlorine reading you take in the morning is 1 ppm or less than the chlorine reading you took the night before, and the water is clear, you are done shocking the pool.
At this point you should be able to run the pump on it's normal cycle, let the chlorine level fall back to the 3-5 ppm range and put the tablets back in the skimmer.
If you have any questions let me know