Under Water Vinyl Wall Stains

[CoffeeBean]

Thank you so much mbar & everyone for your help!

Just a couple more questions:

Where/how do I get the water tested for metals?

mbar, you said:

"You may have algae, because you need a minimum of 8ppms of chlorine in your pool at all times when you have a cya of 100 in order to have a really sanitized pool."

My CYA is 30. It's been ranging form 20 to 30 all summer. Did you think mine was 100?

Unfortunately, when I ordered more CYA from Ben earlier in the summer I thought I was getting two 4oz bottles but got two 2 oz bottles instead. Now I'm out and can't test it anymore. It took nearly 4 weeks to get the last order. Is there any other really quick source for CYA reagent? Our local pool stores just looked at me strangely when I asked if they carried it.

Mbar, you mentioned waiting until spring to clean up the stains. So it won't hurt it any if I close with the stains on the walls?

Thanks again for your continuing support and help. By the time I get this all figured out my kids will have kids of their own! (They're 11, 15 & 16 now)

CoffeeBean

[mbar]

Oops! I read the cya as the alkalinity, down from 120 to 100 Sorry. Yes, you can wait till next year to clean up the stains - they will come off then, and maybe they will go away over the winter. You can get your water tested at some pool stores, or you can sometimes get it tested by your city. Where does your water come from? If it is from a well, then you will need to get it tested on your own, if it is city water they should be able to tell you what is in it. You won't need anymore cya regent until next spring. If your cya has been running around 30, then you are at the low end of cya and even if you are using trichlor pucks you probably didn't come up much. If I were you, I would close the pool this year, and before you open next year get some ascorbic acid, sequesterer, and new regents so you will be ready to go. You can do the stain treatment before you get your whole pool balanced, this way you will only have to do it once. As soon as it opens, take care of the algae (if the water is green) first. Then check to see if there is stains - I have opened to a stainfree pool every year, even if I had some at the end of the summer before. If you do have stains, do the stain treatment with sequesterer. Then balance the water, then have a wonderful summer

[CoffeeBean]

Thank you so much, mbar and all the others who have responded to my plight. I feel much more confident about dealing with the stains - next spring. That takes such a load off of my mind.

Gratefully,

CoffeeBean

[kingbud]

Ahhh, the mellow, friendly vibe of the PoolForum. So nice to be back. Course, I wouldn't be here reading if there wasn't just the teensiest little problem of my own. Hmmmm.... Vitamin C tablets, eh? Wouldn't hurt to have a little stash of those around the house anyway, and they're certainly not very expensive.