BPA-Free Plastic Tanks?

Hi,

I have been wanting to install about 3500 gallon tank that will be used as a rainwater catchment storage unit in my backyard.

I have search high and low on the Internet - found a couple of companies that provide plastic tanks - but their information about their tanks being BPA-Free is inconsistent. I have called the company and dealers and their response is 'yes - it's BPA free' with the exception of one company that mentioned that they aren't 100% confidant that the plastic rain harvesting tanks are really BPA-free. The only information that is consistent across all these websites is that their tanks are 'FDA/NSF Approved Food Grade' tanks, which makes me want to believe that if they were truly BPA-Free - it would be another great selling point and the companies/dealers would highlight it in a big bold font to attract customers.

For form of advice/suggestion is greatly appreciated.

Thank You
Sharham

I'm going to say if it's plastic it's not BPA free.

http://en.wikipedia.org/wiki/Bisphenol_A

http://www.medicinenet.com/plastic/article.htm

http://www.worldpublicunion.org/2013-06-01-NEWS-plastic-numbers-to-avoid-bpa-numbers.html

I agree - otherwise it would be advertised all over stating clearly that its BPA free.

I don't think BPA-free plastic would survive very long.

You could go with stainless. I have found some old milk bulk tanks for good prices occasionally. Still not as cheap as above ground plastic tanks, though.