New Owner, CDX (PHMB) to BBB Conversion

[PoolDoc]

It can take a LOT of chlorine to 'eat up' all the residue.

You'll be done when the chlorine level remains nearly constant from late evening to early morning.

[updog012]

Excellent News!!!

Overnight, my FC levels dropped by about 1ppm, if that... and my CC level was 0.5! I think I'm done! Water looks very clear, all algae is dead and on the pool floor ready to be pumped to waste. Next move? What should I do next? Buy CYA? how much and how to add? You can point me to a resource too if there is one on the next steps.

[Watermom]

We always suggest keeping the chlorine high for one additional day for good measure. Then, you can let it drift down.

Next steps after the pool is clear:
-- Change your sand.
-- Add CYA. (You'll need 5-6 lbs.)

Or, you can use dichlor for awhile which will add CYA and chlorine. When you get the CYA up to around 50ppm, discontinue dichlor and switch to just bleach so your CYA won't get too high. (If you use dichlor, buy it from Sam's Club -- PoolBrand --- or from Amazon--- Kemtek. You can go through our test kit link in my signature to find the Kemtek if you want to go that route.)

Great job!

(Aren't you glad you converted from Baquagoop? )

[PoolDoc]

If you like, you can follow the pattern the Super Simple recipe => http://pool9.net/ssr/ for about 2 months. After that point, you'll need to switch to more conventional treatment.

[updog012]

Ok, all of the suggestions have been enacted. I kept the pool at shock level one more night, then changed the sand, then added cya. So what should I do for maintenance? FC levels should stay around 3ppm after the CYA reaches 30ppm right? Is that all I need to check? And of course remove leaves and debris regularly...is there a good maintenance thread?

[Watermom]

Congratulations on a successful conversion!

How much CYA did you add? Maintenance is easy but I think you'll want your CYA higher than 30 -- probably more like 50. Wait until yours has had a chance to dissolve (around a week), retest and decide if you want to add more.

The routine will be test your pool in the evening and then add enough bleach to get back to the maximum needed based on your CYA level. The goal is to always keep your chlorine in the proper range without dipping below the minimum before the following evening. For more info about the connection between CYA and chlorine, read here: http://pool9.net/cl-cya/ (Until your CYA has a chance to build up, you may find that you need to add bleach a couple of times per day to keep it from dipping too low. You don't want algae!)

In your pool, (which I think is probably more like 13,500 gallons), each quart of 8.25% bleach will add about 1.5ppm of chlorine. Each of the 121-oz. jugs will add about 5.8ppm. Use those as references to help you figure out doses each evening. A bleach calculator that may be helpful is here: http://pool9.net/bleach-calc/ It actually has more calculators in the drop down menu in the upper left corner.

Keep your pH between 7.2-7.8.

Hope this helps. If you have more questions, we'll be here!