I don't understand using RO/DI filers

[inachu]

Wouldn't they just remove the salt from the water turning it into just plain tap water?

 

[Michael]

you filter plain tap water through the ro-di and then you mix the newly made up water with your choice of synthetic seasalt to the salinity you choose

 

[memorysan]

The RO/DI is does not filter the water in the aquarium...it is used to filter the tap water before you put it in your aquarium. Once you add salt and put the water in your aquarium it never goes through the RO/DI again.

 

[inachu]

Oh! Now that makes my question look silly!
I learn more everyday..........

 

[inachu]

So RO/Di water is ready to use right away and do not have to worry about the chlorine that is present or this filter removes that as well?

 

[joem1cha3l]

<a href=showthread.php?s=&postid=12209429#post12209429 target=_blank>Originally posted</a> by inachu
So RO/Di water is ready to use right away and do not have to worry about the chlorine that is present or this filter removes that as well?

By the sounds of that statement it leads me to believe you filled your whole 55 gallon tank with tap water? And do answer your question, yes it purifies the water to the parameters neccessary for your saltwater tank.