We build a SWG pool that was completed in June. We live in Austin and are loving the pool. But it's now 2+ months later and I am seeing some rust at the tile line. Our pool has concrete decking and coping, OK stone on the back wall, glass tile and a pebbletec alternative from CLI Industries. There is a water feature on the back wall.
We are only seeing the rust on the back wall. It's the only area with OK Stone and also where the water feature is located. The is rust on the wall near the water feature and also areas that are far from the water feature and seemingly dry. There are some small gaps between the concrete coping and the tile line. If there is rust, it does seem like it's more likely to be at a small gap. But lot of places with this small gap don't have the rust.
Here are some pictures:
http://twitpic.com/682siz <---- Here is a general look at the pool. Back wall on the left
http://twitpic.com/682ovj <-- rust example
http://twitpic.com/682ran <--- rust example
http://twitpic.com/682q26 <-- Shows the water feature. A bit of rust at the right
The PB said rust was to be expected and use a acid water mixture on it. We did this. The pictures are after a partial treatment. But I am now thinking something systematic is going on and needs to be addressed.
Any thoughts or ideas?
Thanks for reading!