Just Filled Pool Please help with BBB.

[Watermom]

3#, 9 oz means 3 pounds and 9 oz of cya that should be added. I would just add 3 pounds for now. Then after a week's time when you retest it, you can add more if you think you need it.

In a 15,000 gallon pool, each quart of 6% bleach will raise your chlorine level by 1ppm. Until your cya dissolves, you're going to have to test your chlorine level morning and evening and each time, add enough bleach to get your cl level up to about 4-5. You'll find that you will probably lose most of that in a day. But after your cya dissolves, you'll be able to just test and dose it with bleach in the evenings.

Another option for your source of chlorine is to use cal-hypo. This would probably be a good choice for you since your pool also needs to increase the calcium level to between 200-400. I can't help you with amounts, but the label should tell you how much to add per volume to achieve a desired chlorine level. If you do decide to just go with bleach instead, you'll need to add some calcium.

24 oz. of muriatic acid should take you down to a ph reading of about 7.6 which would be good. Pour it slowly in front a return jet. Be careful not to breathe the fumes or splash any on yourself.

In your pool, adding 2# (2 pounds) of baking soda will cause the alk to raise by about 10ppm. I would add this in 4 pound doses and sneak up on a target of 80-125.

You can add these things one after another - just waiting a few minutes between them and it should be fine.

Good luck. Let us know if you have any more questions. There is always someone here to help!