This a link to the barrel I wish to use:

http://www.leevalley.com/garden/page...renc y=1&SID=
http://www.leevalley.com/garden/page.asp?page=10366&category=2,2280,33168&ccurrenc y=1&SID=

TW wrote:

I was given a 50gal plastic rain barrel made by Lee Valley Tools as a
christmas gift. I am hoping to use it to set up a float valve to
store R/O or mix up SW for water changes. Are there any types of
plastics that are not safe to use for this purpose? This dark green
plastic barrel is brand new and never been used. Has anyone ever had
a problem using a plastic container? Anyone have any ideas? I was
planning to thoroughly rinse it out and then fill it, let it soak for
a few days and then dump the water. If anything were going to leach
out of it would this help to avoid any problems?

Thanks,

Todd