Newbie - Stain removal via ascorbic acid

[herb396]

My kids roll their eyes at me all the time despite an unexciting vocab,,I just think they become numb to the sound of my voice.

I have a small test kit using drops but limited to pH and CL. Any other test numbers I've posted have always been from testing at the pool store. But after seeing HS kids working at the store, I have had my doubts to the consistency / accuracy.

[aylad]

Any other test numbers I've posted have always been from testing at the pool store. But after seeing HS kids working at the store, I have had my doubts to the consistency / accuracy.

Yep, that's probably where your CYA "went"!

Janet

[herb396]

OK so the plot thickens..The stain has returned in the shallow area,,keeping the CL low (around 2) and adding a bit of polquat...been trying to boost the CL by adding more cal hypo daily (2 - 3 scoops x2 daily) CL has been up to 5 last two days but now the water pool has gotten cloudy and turning green.

Readings as of today from the pool store:
CYA - 28
Tot. CL - 7.5
FC - 6.6
pH - 7.3
Tot. Alk - 110
Adj. Tot. Alk - 102
Copper - .2

[PoolDoc]

Hi Herb;

1. Don't let it go green -- add a bunch more polyquat and a little more chlorine.
2. Check your chlorine again to make sure it has no copper.
3. Have your pool store retest again, BUT, take some bottled water with you and ask them to test that TOO. Say, "I want to see if my drinking water has copper in it." (No lie ;-) If they find copper in that, the copper reading is probably just testing error. If they do NOT find copper in the bottled water, but DO find copper in your pool . . . you probably have copper in the pool and we need to figure out why.

PoolDoc

[herb396]

Ben
1. Done: added both polquat and CL (chloringting granulars)
2. The CL I'm using is labled as 68% Calcium Hypochlorine and 32% other ingredients as provided by "Poolife". I called Arch Chemicals, the company who produces the product, and had them pull the MSDS sheet. They confirmed that there is no copper in this product.
3. Just to be clear: do you mean I should take store bought "bottled water" or should I be bringing them tap water in a bottle as the second water test / along with my pool water.

Thanks,
herb

[herb396]

OK had the water retested at 4:30 pm:
CYA -70
Tot. CL - 7.5
FC - 6.6
pH - 7.5
Tot. Alk - 125
Adj. Tot. Alk - 104
Copper - .2

Store bought "bottled water" was tested for copper and produced no reading.

[herb396]

24 hrs later and no change in water apperance: water is cloudy and satin seems to have come back over 70% of the surface. ...(maybe I should start thinking about going with a black bottom pool)

I could use a little help on what to do next.

[aylad]

Store bought "bottled water" was tested for copper and produced no reading.

Ben, unless I misunderstand what you were getting at, I'm not sure that you've established that his tap water is copper-free.

Janet