Low calcium levels, plasticizers in vinyl liners, leaching cobalt from fibergalss?

[waterbear]

I've heard things like this, but when I've had the opportunity to ask engineers with one of the two big manufacturers of vinyl sheet, they were very skeptical and doubtful.

But . . . I'd be very grateful if you'd mail, scan and email, or fax me copies of this info. I'd love to read it carefully. If you can, PM me and let me know how you can send it, and I'll give you the info you need.

Thanks!

Ben

Will be glad to fax it to you. I just want to restate that it was the gentlman from Ace Hardware that told me that WaterTEQ has done this research. The exact quote concerning calcium is:

"Water has an appetite for metals and minerals that will be satisfied. If it's appetite is not satisfied, it will pull the calcium out of plaster or marcite, gunite, or shotcrete pools, and the plastecisers out of vinyl liner pools, and the cobalt out of fiberglass finishes. Low calcium hardness will cause deterioration fo these finishes and shorten the life of the pool or spa surface."

Like I said in my original post the handout was one on general water chemistry and it was all sound information. That is why I questioned this one statement since no references were given. The only thing I have been able to find to support this is in the maintenance manual for San Juan fiberglass pools and in the Pool Care guide from Royal fiberglass pools and once again, no refereces to any research have been given.

I could find NOTHING to support the claim for vinyl liners!
I own a San Juan pool so you can understand my concern to find the truth out!

Edit: Update, my builder was out today to try and get the rest of the fiber optics running and I asked him about this. His feeling (and he builds both fiberglass and gunite) is that you don't have to worry about calcium in a fiberglass pool. I showed him the San Juan manual that I downloaded (funny that he never gave me a hard copy one ) and he said he would check with San Juan about it becuase it goes against everything that he knows. As soon (or if, which is more likely with him) he gets back to me I will post the info on here.