Alternatives RO/DI water??

[recoiljpr]

I have a quick question about alternatives to RO/DI water. Currently I have a 29 gallon tank and I don't think it would pay me right now to purchase a $300 or more RO/DI filter system for topping off my tank and bi-weekly water changes. While I know I can purchase RO/DI water from my LFS, could I use the water from some place like one of those stand alone water places (walmart, etc)? While I know it's filtered, I don't know if it's fully RO/DI or not. Have any of yall used those to your satisfaction?

 

[Anonymous]

They are usually RO only, no DI. Many of us used it without problem. Just make sure it is not neglected, and has its last filter change 4 years ago.

It is always a good idea to do some quality assurance with a TDS meter once a while. You never know what can happen to filter somedays.