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Old 08-04-2012, 03:23 PM   #21
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I have valve before but why after
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Old 08-04-2012, 03:33 PM   #22
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Quote:
Originally Posted by Hardridge
I have valve before but why after
If you have chaeto id let that take care of nitrates and switch out your biopellets for gfo for phosphates its a good combo biopellets are not know to completely take care of phosphates their best on nitrates imo but gfo will completely take care of phosphates
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Old 08-04-2012, 04:36 PM   #23
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I have valve before but why after
Valve after will control flow out of the reactor allowing you to fine tune how fast the pellets strip the water of nitrates and phosphates. Again to get the most out of biopellets you need a great over rated skimmer.
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Old 08-04-2012, 04:51 PM   #24
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Schism, in your opinion, what would be the best reactor to run them in that doesn't break the bank??
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Old 08-04-2012, 05:42 PM   #25
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I run one with bio pellets and one with gfo. And every thg is at 0
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Old 08-04-2012, 05:45 PM   #26
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Schism, in your opinion, what would be the best reactor to run them in that doesn't break the bank??
Im not sure, i dont have the most experience with large reactors like you need.
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Old 08-04-2012, 07:14 PM   #27
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Just asking but doesn't two valves just slow down flow? why can't u do that with just one valve?
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Old 08-04-2012, 08:19 PM   #28
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Just asking but doesn't two valves just slow down flow? why can't u do that with just one valve?
One valve will control flow but with one you cannot control the flow into and out of the reactor separately. Ideally flow into the reactor will be higher than coming out allowing you to control how good the pellets work in essence.

The second valve will stay wide open until nitrates and phosphates become almost depleted, at that point the second valve comes into play, you do not want to strip all phosphate from the water. Especially on smaller tanks or if running a lot of pellets etc. fairly easy. Depends on the pellets your using as well.
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Old 08-04-2012, 08:24 PM   #29
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One valve will control flow but with one you cannot control the flow into and out of the reactor separately. Ideally flow into the reactor will be higher than coming out allowing you to control how good the pellets work in essence.

The second valve will stay wide open until nitrates and phosphates become almost depleted, at that point the second valve comes into play, you do not want to strip all phosphate from the water. Especially on smaller tanks or if running a lot of pellets etc. fairly easy. Depends on the pellets your using as well.
Imo the first valve will control it for instance if the first valve is allowing 1gph the second valve could not speed this up and if you use the second valve to slow it down that can be done by adjusting the first valve
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Old 08-04-2012, 08:28 PM   #30
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Imo the first valve will control it for instance if the first valve is allowing 1gph the second valve could not speed this up and if you use the second valve to slow it down that can be done by adjusting the first valve
Flow going in cannot be higher than flow goin out where is the extra water going? Lol when you slow down flow of second valve you are also slowing flow of first valve
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