Under Water Vinyl Wall Stains

[CoffeeBean]

Hi,

During the winter I didn't have any steps in the pool. I take them out when I close up. This is an AG pool but I have a surround deck.

CoffeeBean

[doggie]

I'm thinking that you've got some metal staining happening. I've seen a few threads on how to get rid of those. Do a little searching here, you'll find the answers. (sorry, I don't have time at the moment)

[mbar]

You can test to see if they are metal by crushing up some vitamin C tablest and rubbing them on the stain., or use some ph down in a sock and rub it on the stain. IF the stain goes away with either of these, then it is from metals. Let us know how you make out

[CoffeeBean]

mbar,

Will this work underwater? I'm thinking that the Vit C or whatever will be washed away immediately upon immersion. OR will enough remain to use this as a test?

[waste]

I don't want to step on Marie's toes, but a small amount in a small area should indicate whether it's working.

[mbar]

Waste is right, you just need to put it on the stain for a while - you can even hold some in your hand and rub it on the stain. Ascorbic acid (vitamin C) will immediately lift the stain when it comes in contact with it. You will see a little clean spot where the vitamin c hits the stain if it is a metal stain. You can read through this stains and metals forum to read more about it. Feel free to ask any other questions you have

[CoffeeBean]

Well, I had a real "Aha!" moment when I put the Vit C against the stain. I came away clean as a whistle! That's why I love you all on this forum. I'd be totally lost about this pool without you guys.

An interesting thing also happened while I was in the pool trying out the vitamin C.

I have tried using a scrub sponge in the past with zero results. Today I accidentally brushed my foot along the coping edge and noticed that some of the stain came off so I tried the sponge on it.

I made my way all around the 16 X32 using my foot and the sponge (got lots of aquatic leg lifts in today!) and found that some of this stuff comes off down at the bottom of the pool. It didn't at all farther up the wall.

When I took the sponge out to look at it, there was rust colored stuff on it that rinsed out. Is this still metal too or do I have some algae?