Rubbermaid 18 gallon for mixing saltwater?

[packer]

After reading the thread with the horse trough problem, I was wondering if all plastic (new) will release bad chemicals. I have been buying saltwater at LFS, and just decided to start mixing my own. I bought an 18 gallon rubbermaid rectangle tub (tan in color) to mix in. I have an RO/DI unit and will use that for water.

I do not want to hurt or crash my tank by using the new tub. Has anyone used these and were they ok?? I just got the tub today and was going to mix a batch in the am tomorrow, so any help asap is appreciated.

 

[Curtswearing]

Look on the side or the bottom for the number in the triangle (Resin ID Code)

http://www.americanchemistry.com/s_plastics/bin.asp?CID=1102&DID=4645&DOC=FILE.PDF

 

[packer]

It is LDPE 4 listed on the bottom. So is it okay to use?

 

[ac7av]

I would say its good, according to the chart that type is also used in food applications like condiment bottles.

 

[Jeather]

Looking at that chart it appears everything on it is used for food. So what can't we use to mix SW with? Just as long as it has one of those symbols on it its good?