Hope you're there Marie ??

[mbar]

When adding chlorine you need to keep the ph low. You will need to keep adding the chlorine slowly at first, keeping it at about 3ppms for your low cya. It is ok to add some more sequestering agent if the stains keep returning. Don't add anymore cya, it can take up to a week to show up in your water.

[stma]

Wow...this is a delicate dance between FC and green !!!...As of this morning, Water is finally holding FC overnite, but the metals fell out again...The ONLY thing I did different was to shut down the filter last nite.....Does pool water with metal issues need to be pumped 24/7 ?? I turned the pump back on and i'll see if the stains dissipate

Numbers:
FC: 3
CC: 0
PH: 7.2
Alk: 90
CYA:30
temp: 81

[Skillset]

I am having similar issues with metals. My FG pool was stained upon opening and I used the Ascorbic acid treatment (followed by Metal Magic) which removed every sigle stain. But, when Cl was raised accidentally, stains came back w/a vengeance and 60% of the pool was covered! Used Metal Magic again, which unbelievably cleared the entire pool. I was impressed. But, stains started forming again just 3 days later, despite a lower cl and lower ph. I'm scratching my head.

I'm in the process now of figuring out what works. Marie and Waterbear suggested some Calcium in the pool, which I did. Marie was also using Metal Out from Waterwarehouse, which I bought.

I've been using Extra Strength Metal Out for a few days now and it has not removed the stains - it lightened some stains but did not remove them. So, for the stains that I have, I think the Metal Magic works better. I'm out of the stuff right now and have ordered more this week. Pool is stained right now - I'd say 20%.

I also had some stain problems last year, but not as bad as this. I probaly used about 3-4 quarts of Metal Magic all season. Again, the Metal Magic is clearing the pool - but I don't want to be burning through a quart of this stuff every week! My CYA was 30 and I am in process of bringing it up to 50. The CYA level is is the only difference really from how I kept the pool last year.

I'd love to be able to have a stain-free pool and use a weekly maintenance dose, but I really find I have to use a lot of product to get rid of the stains.

Perhaps running at a higher CYA and a higher Cl, it will help. My ph is pretty consistent at 7.2. I know higher Cl has been stated to bring stains out, but perhaps with CYA, maybe less so. I only say this from my experience last year.

[mbar]

I know how frustrating it is A couple of seasons ago, I kept the stain dance going. Last year I hardly had any stains. This year I had a lot of stains at the beginning, but now I haven't had any bad ones since putting in some ascorbic acid. I do find that using pucks or calhypo seem to add to stains. I have my cya at around 60 now. I am still not sure why sometimes the sequestering agent works, and sometimes the stains keep coming back no matter how much is in there. Every time I see some stain start, I take my ph back down, add some sequestering agent and they go away. I try to keep my chlorine at the level of the best guess chart. It is a balancing act, and sometimes the stains don't come off with the sequestering agent. I then just add some ascorbic acid around the perimeter of the pool and they disappear without taking the water out of balance (just lowers the ph a bit). I do keep my filter running 24/7, I think it may help with staining, but not much. I wish I could be of more help, but it is just not an exact science. I will keep trying to find out what works, and if everyone with stains posts what works for them we can learn from each other.

[stma]

As the day wore on (cloudy but warm), the CL dissipated as expected ALONG WITH the green tint !!!...once the green disappeared, I check the CL which read 1.5-2...

just dumped a qt of 6% which should raise it to just above 4ppm...i'll see what happens...

[szampino]

How is it going?

When you get a chance post an update.

Please include full water make up,fc,cc,tc,alk,ph,cal,cya. Please also include your Pool size, liner, and filter type.

[mbar]

Yes, I would be interested to see if the stain came back with the additional chlorine. It is how we all learn It is always good to post a current set of numbers