Alkalinity High and pH low

[BMomma]

OK Watermom - I added bleach last night - and we had HUGE rain storms all night. Didn't get to Walmart until just now - got the test kit and added some 20 Mule Team Borax

pH 6.8 - possibly a little higher (this was before adding 20 Mule Team Borax)
TA 240ppm
CA - the dot never disappeared
TH - 400ppm
Cl/Br - 0

I guess I'm just not sure how much of the Borax or Bleach to add, how long to wait before retesting and adding, should the filter be running before/after/during/between testings?

THANK YOU!!!!

[PoolDoc]

OK. Lemme interpret.

pH = 6.8. This means your pH is 6.8 OR LOWER, not that it's 6.8. Add 1/2 box doses of borax till you get up to 7.0. Then keep it there. (You can lower it to 6.8 as long as you do it with SMALL acid additions, so that you know that if it's lower than 6.8, it's not much lower!)

CA = CYA = cyanuric acid or stabilizer = 10 ppm OR lower. Essentially, you have no stabilizer.

TA = 240 => Your alkalinity is high enough to cause problems.

TH (CH?) = 400 => Your hardness is high enough to cause problems, in combo with the high TA.

Cl = 0 => You are about to get algae!!


For dosing and other info, read the Super Simple recipe page => http://pool9.net/ssr/

For the next week or so, do NOT add ANY chemicals EXCEPT: bleach, dichlor (see ssr), muriatic acid, or borax. ESPECIALLY, do not add any baking soda, sodium carbonate, pH up or calcium containing products, including cal hypo shock.

Modify the SSR to use acid as needed to keep your pH near 6.8 - 7.0. Lowering alkalinity requires (3) ingredients: acid, aeration, and P.O.P. Aeration occurs slowly in all uncovered pools, but anything that ruffles the surface or makes bubbles (like two 10-year old boys) will speed it up.

P.O.P is more difficult, because pool owners are inclined to look for something that they can just pour in, but Pool Owner Patience can't be purchased at the pool store! (Sorry, my alarming inclination to alliterate has appeared again!)

=> . . . membership updated.

[Watermom]

Read these two links: http://pool9.net/alk-step and http://pool9.net/muriatic/

They will explain why PoolDoc wants you to keep your pH on the low side and aerate your water as much as you can to try and drop your high TA.