Reefs.org Forums

[Louey]

I just installed a new 6/50 RO/DI I bought on ebay. [img]images/smiles/icon_biggrin.gif[/img] I've heard that new filters and/or membranes need to cycle for a while before the water is safe for reefs. The instructions say throw out the first tank before drinking. How many tanks would you guys toss before using in your reefs?

Thanks for your input!

[ July 06, 2001: Message edited by: Louey ]

[yznhmr]

wow i never heard this when i bought mine, but it makes sense

[Louey]

Any one else?

[Styk33]

I discard the first 4 gallons of water after a membrane change. I do it for some reason, just don't remember why.

When I bought my unit new it did say to discard some of the water. No clue how much, but that might be why I toss 4 gallons of good water in the garden.

[junkzoo]

the instructions on mine said 2-3 hours.there's usually a preservative on the membrane ,,,hence the "cycle" to remove and flush out same [img]images/smiles/icon_smile.gif[/img]

[Dave Visovatti]

Osmonics and DOW recommend 2 hour flush there some chemicals in the membrane.

[junkzoo]

yup, my ro/di from Natures Way recommends discarding the first 5 gallons or so,,,this is due to the "mildew(mold)inhibitors" in the membrane,(remember, it was shipped"damp")

[esmithiii]

mine said 2-3 hours to flush the preservatives. I doubled it because I am neurotic, and obsessed w/ my tank, not to mention this board.

BTW- where are the aquaFX/ReefPure guys when you need them!? [img]images/smiles/icon_biggrin.gif[/img] [img]images/smiles/icon_razz.gif[/img]

[Emperator]

err. esmithii, take a look a few posts up. hehe

[img]images/smiles/icon_smile.gif[/img]