help ro/di tds test????

[pherbert]

<a href=showthread.php?s=&postid=12912030#post12912030 target=_blank>Originally posted</a> by digitalman0111
that wonder why I fill my ro/di water in my rubermaid that I used to mix saltwater i test the my ro in this rubermaid is around 400 ppm that is come from the salt or some white powder stick around the rubermaid from the last time i mix the water.

Thanks

Correct, your mixing barrel or tub will have some residual salt that will run up the count.

 

[pherbert]

<a href=showthread.php?s=&postid=12912060#post12912060 target=_blank>Originally posted</a> by digitalman0111
for more information my ro/di meter right now is 002 that is good ?????

I've heard people opine that anything under 010 is acceptable. Mine regularly read 002 until I replaced the carbon, prefilter, and DI resin. Now it always reads 000.

I assume you are putting test water directly from the RO/DI unit into a clean, rinsed (no soap residue,) glass to take this reading, and not dipping it out of your barrel?

 

[digitalman0111]

cool, so my water is at least good now after six month of use the bad ro/di water, that may be cause my corals not very happy and some is gone. and my green kalupa turn white and die.

thanks

 

[Buckeye Hydro]

<a href=showthread.php?s=&postid=12922607#post12922607 target=_blank>Originally posted</a> by pherbert
Mine regularly read 002 until I replaced the carbon, prefilter, and DI resin. Now it always reads 000.

Your prefilters don't affect tds...

Russ