Dark spots forming in new white plaster

Should I leave the main drain like that all of the time? Even at higher rpm’s?
You don't need much flow through the main drain.

You should not need more than about 40 gpm at any time.
not sure if this is relevant, but the water turned green within the first few day.
That's probably iron.

You might have some copper stains, but they are not really bad at this time.

Looking at the filter cartridges would help a lot.
 
You don't need much flow through the main drain.

You should not need more than about 40 gpm at any time.

That's probably iron.

You might have some copper stains, but they are not really bad at this time.

Looking at the filter cartridges would help a lot.
Ok, thanks for your help, I will try to take a look at the filter today. As far as the weirs, they are new, and seem to be functioning as they should. I will check out those videos you posted.
 
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Looking at the filter cartridges would help a lot.
I was able to get the flitters cleaned up, not sure what I was looking for, but I took a few pictures.
 

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I was able to get the flitters cleaned up, not sure what I was looking for, but I took a few pictures.
We are mostly looking for blue or turquoise.

I don't really see much that looks like copper, so that is a good thing.

The copper levels are probably low, but possibly enough to stain if the copper gets oxidized.

See what the stain ID kit indicates.

Maybe have the water tested for copper and iron.
 
We are mostly looking for blue or turquoise.

I don't really see much that looks like copper, so that is a good thing.

The copper levels are probably low, but possibly enough to stain if the copper gets oxidized.

See what the stain ID kit indicates.

Maybe have the water tested for copper and iron.
Thanks again, I will pick up a stain kit.
 
We are mostly looking for blue or turquoise.

I don't really see much that looks like copper, so that is a good thing.

The copper levels are probably low, but possibly enough to stain if the copper gets oxidized.

See what the stain ID kit indicates.

Maybe have the water tested for copper and iron.
I didn’t originally think the vitimin c tablets did anything, but when I checked the spots again, they were definitely lighter, not gone, but lighter.
 
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I have a Jack's Magic stain ID kit, haven't had a chance to use it yet. I tried vitamin C again on one of the larger darker spots, let it sit for a min or so, brushed it, then a few hours later the spot was gone. I cannot seem to find a definitive answer if vitamin C works on both copper and iron. I've read on this site that it will not work on copper, other sites say it works on both. Some say it will make copper stains worse. Any input would be appreciated. Thank you.
 
So the Jack's Magic Stain ID kit points to copper. The larger darker stains didn't go away immediately, but the dirty looking swirly stains the cover the majority of the pool did. Is the Jacks Copper treatment the way I should go? Or is there something better and or cheaper? Thanks as always.
 
Note that any treatment can have a bad reaction, so you have to do this at your own risk with no guarantee of it producing the desired effect and it might even have adverse effects.

I suspect that the Jack’s #2 Copper and Scale Stuff (Sulfamic acid) would probably work, but it locks up the chlorine into CC for months.

You can try ascorbic acid, but that is less likely to work and it sometimes has a bad reaction and makes more black stains.

You can wait it out or you can drain and refill if you have water available with no metals.

Do not drain unless you can verify that it is safe to do so without popping your pool out of the ground.

You also have to take the heater offline to protect the heat exchanger.

Jack’s Magic Products, Inc. • Largo, FL 33773

(800) 348-1656 • www.jacksmagic.com

Revised: 3/29/19

Treatment Prerequisites

*DO NOT PROCEED IF THE FOLLOWING CONDITIONS HAVE NOT BEEN MET

CONTACT JACK’S MAGIC TECHNICAL SUPPORT FOR ASSISTANCE

• Positive reaction for this treatment with Jack’s Magic Stain ID Kit

• Water Temperature must be above 65°F

• Isolate all heaters and/or heat pumps from circulation system

• Isolate or remove ionizers, mineral systems and chemical feeders; turn off salt generators

• This treatment is recommended for pools up to 35,000 gallons; contact a Jack’s Magic technician for larger pools

• Properly balanced water for stain treatment (see chart below)

TIP: Do not swim during this treatment. If you cannot close the pool for the duration of a Stain Solution #2 Treatment

(48 hours – 2 weeks), contact a Jack’s Magic representative for an alternative solution.

1. Balance pool water to the following parameters:

BALANCE PARAMETERS for STAIN IDENTIFICATION AND REMOVAL

Pool Water Item: Balance Parameter(s)

Free and Total Available Chlorine (FAC & TAC) 1-3 ppm

pH 7.0-7.4

Total Alkalinity (TA) 80 ppm or below

Calcium Hardness (CH) 200 - 400 ppm

Cyanuric Acid (Stabilizer) (CYA) Below 70 ppm

Total Dissolved Solids (TDS) Below 1,200 ppm (4,000 ppm in salt systems)

2. Turn pool pump on.

3. Add ½ gallon Muriatic (pool) Acid per 10,000 gallons of pool water AFTER the pH and TA are adjusted.

4. Add Jack’s Magic® the Blue Stuff® at a rate of 1 quart per 10,000 gallons of pool water.

TIP: With salt (chlorine generator) system or high TDS (over 1,200 ppm) substitute the Purple Stuff® in place of the Blue Stuff.

For Scale Removal only, we recommend using the Magenta Stuff™ instead.

5. Add 10 pounds of Jack’s Magic STAIN SOLUTION #2 the Copper & Scale Stuff™ per 10,000 gallons of pool water.

Pre-dilute product or brush any undissolved product immediately as it reaches the bottom.

6. Circulate pool continuously on high speed for the duration of the treatment (48 hours – 2 weeks).

TIP: Use the Filter Fiber Stuff™ to enhance filtration in a sand or cartridge system for a more efficient removal.

“Get with The Program!”

Stain Solution #2 Treatment

(The Copper & Scale Stuff™)

Jack’s Magic Products, Inc. • Largo, FL 33773

(800) 348-1656 • www.jacksmagic.com

Revised: 3/29/19

7. After 7 days, clean the filter, brush the entire pool and add chlorine (or other sanitizer) as required, but DO NOT shock.

Test pH and Total Alkalinity; add acid if pH is above 7.0 or Total Alkalinity is above 80.

If stains have not started to lift one week into treatment, call JM technical support for assistance at 1-800-348-1656.

TIP: This treatment can produce false free chlorine readings for 3-4 weeks; use the total chlorine reading during this time.

8. Add 12 ounces of the product used in Step 4 per 10,000 gallons weekly during treatment.

It is highly recommended that this product is used at a maintenance dose for at least three weeks after treatment is concluded to prevent re-staining.

9. After the stains are completely removed (this may take a few weeks), slowly begin re-balancing total alkalinity using sodium bicarbonate only.

Add no more than four pounds per 10,000 gallons per day.

Heaters, mineral systems and salt generators may be used 48 hours after re-balancing.

DO NOT SHOCK for 1 week after treatment; this may cause re-staining.

“Get with The Program!”

Stain Solution #2 Treatment

(The Copper & Scale Stuff™)

 
Note that any treatment can have a bad reaction, so you have to do this at your own risk with no guarantee of it producing the desired effect and it might even have adverse effects.

I suspect that the Jack’s #2 Copper and Scale Stuff (Sulfamic acid) would probably work, but it locks up the chlorine into CC for months.

You can try ascorbic acid, but that is less likely to work and it sometimes has a bad reaction and makes more black stains.

You can wait it out or you can drain and refill if you have water available with no metals.

Do not drain unless you can verify that it is safe to do so without popping your pool out of the ground.

You also have to take the heater offline to protect the heat exchanger.



I don’t have a heater, don’t plan to drain, bc I’m not sure I could find good water. What does locks up the chlorine mean? That I won’t have FC available to keep the water safe for swimming?
 

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