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Old 07-12-2013, 12:12 PM   #101
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I wouldn't do more than 50% water change at a time.

In your circumstances you really need to invest in a rodi unit. No knowing what is in the water you are getting. If they use copper tubing in their process it could be contaminating your tank for instance.
I bought one and had to return it because it had a broken part. Looked around town at lowes, Home Depot, sears and can't find another. Will have to order online.

Should I wait on that before I do the water change?
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Old 07-12-2013, 01:38 PM   #102
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I would. Hopefully you can get one shipped fairly fast.
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Old 07-12-2013, 05:49 PM   #103
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For the first water change i'd leave just enough to keep the sponge covered With those TrAtes at 160? your only going to lower them by half forcing another PWC very soon in order to lower them to 40 then again to get them to 20 (50 percent PWC's)

Get yourself a RO/DI unit theres some good on e bay BRS has a very good one for around $200 look for a group buy to save even more. It wont hurt to add that small power head aim it the surface it will help with the PH.
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Old 07-12-2013, 06:47 PM   #104
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When you do big water changes with rodi units do you put water in a container before the change or just let the water flow out of the rodi into the tank?
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Old 07-12-2013, 06:55 PM   #105
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I mix mine in a 32 gal. brute trash can if you add all that fresh water it will shock/kill the bacteria and any livestock The only time i do a large water change is right after a new tank has finished cycling
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Old 07-12-2013, 07:38 PM   #106
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I mix mine in a 32 gal. brute trash can if you add all that fresh water it will shock/kill the bacteria and any livestock The only time i do a large water change is right after a new tank has finished cycling
Do you siphon it back into the tank?
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Old 07-12-2013, 07:49 PM   #107
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For the big WC do you put the salinity the same as the main tank or what?
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Old 07-12-2013, 07:56 PM   #108
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Yes i try to match temp and SG to the main tank i use a mag 7 to pump it from the trash pail to the main tank
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Old 07-12-2013, 09:56 PM   #109
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Good questions tategrant...I need to know this too!

Grizz: what is best way to empty the water for the change...siphon from the DT?...water hose out the back door? Dip it out with pitchers into 5 gal buckets or trash cans and then go dump?

Then I make new saltwater to replace it...right? When I filled the tank I just made the water in 5 gal buckets and dumped it directly into the DT. Can I do the same for the re-rill or will that upset anything?
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Old 07-12-2013, 10:50 PM   #110
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Good questions tategrant...I need to know this too!

Grizz: what is best way to empty the water for the change...siphon from the DT?...water hose out the back door? Dip it out with pitchers into 5 gal buckets or trash cans and then go dump?

Then I make new saltwater to replace it...right? When I filled the tank I just made the water in 5 gal buckets and dumped it directly into the DT. Can I do the same for the re-rill or will that upset anything?
Your a little ahead of me but I need to know the same things!
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