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Alex Fish Addict 510 Posts: 721 Registered: 03-Oct-2004 | |
Posted 23-Oct-2006 12:39 | |
mattyboombatty Moderator Tenellus Obsessor Posts: 2790 Kudos: 1507 Votes: 1301 Registered: 26-Mar-2004 | Why would you want to do that? It would be like having a single outlet from a single pump. Also, if you are running 4 pumps into 1 outlet you will kill your pumps, even if each pump gets alternated, there will be a period where the pump is basically pumping into a wall, from what I understand about the OMs. Critical Fertilator: The Micromanager of Macronutrients |
Posted 24-Oct-2006 04:43 | |
Alex Fish Addict 510 Posts: 721 Registered: 03-Oct-2004 | no, i mean one pump with 4-8 alternating pipes sucking up water into the OM and then being pushed out into the tank, if that makes sense |
Posted 24-Oct-2006 10:29 | |
mattyboombatty Moderator Tenellus Obsessor Posts: 2790 Kudos: 1507 Votes: 1301 Registered: 26-Mar-2004 | So you want 4 pipes coming from one pump then into the OM then out with one pipe into the tank? That would still be useless and like having one pump, pumping one pipe into the tank. The only other thing I could think you are trying to describe is pulling water out of the main tank via 4 pipes using the pump in reverse. I wouldn't know why you want to do that either. Sounds like a flood to me. If I'm still not getting it, maybe draw me a picture? Critical Fertilator: The Micromanager of Macronutrients |
Posted 24-Oct-2006 15:17 | |
Alex Fish Addict 510 Posts: 721 Registered: 03-Oct-2004 | The only other thing I could think you are trying to describe is pulling water out of the main tank via 4 pipes using the pump in reverse. im thinking of using reverse flow to keep the sand nice and clean, then the paticles get sucked up into the om and put up near the surface of the tank to go down the wier. If you have a OM running normally and hide it behind LR wont it just hit the walls of the tank or the piece of LR? Where as the OM in reverse would pull the water onto the corals. |
Posted 25-Oct-2006 10:12 | |
mattyboombatty Moderator Tenellus Obsessor Posts: 2790 Kudos: 1507 Votes: 1301 Registered: 26-Mar-2004 | Sure if you have an OM outlet pointing at a wall or peice of LR it will hit the said ob Pulling water out of the main display via a pump and down into a sump is asking for trouble. Even two of the exact same brands of pumps have slightly different flow rates and with plumbing and whatnot it will be thoroughly impossible to exactly match rates in and out of the display using two pumps. You'll either flood the sump or display, or kill a pump. Plus you'll run the possibility of sucking up small fish and shrimp etc. Critical Fertilator: The Micromanager of Macronutrients |
Posted 25-Oct-2006 19:03 | |
jmara Big Fish Posts: 438 Kudos: 431 Votes: 145 Registered: 06-Mar-2003 | I believe the easiest solution to this problem is having a good cleanup crew. Then you don't have to worry about keeping the sand clean because the inhabitants do it for ya I agree with Matt though...Trying to pull water out physically with a pump is a bad idea. I tried it (on a small scale) and could never get the flow out precisely equal with the flow in. It could have been a huge mess if I did it on an actual tank setup. Additionally, as the pumps are used, the outputs change a little bit due to grim buildup -Josh |
Posted 25-Oct-2006 20:08 | |
Alex Fish Addict 510 Posts: 721 Registered: 03-Oct-2004 | |
Posted 26-Oct-2006 10:43 | |
mattyboombatty Moderator Tenellus Obsessor Posts: 2790 Kudos: 1507 Votes: 1301 Registered: 26-Mar-2004 | btw i mean a closed loop Well that would've been helpful in the first post. I would guess that the one outlet will be blasting out water all the time and that won't be beneficial to anything. I don't think it will create the random choppy flow, but I also don't think it will hurt anything as long as the one outlet isn't pointing at anything alive and grates are put on the 4/8 inlets that will be pulling water in. I'm still not certain that it makes a difference if water is pushed one way or another past a coral if you are talking about unidirectional flow. Preferentially you get water pushed past corals in all different directions. That's what the OM is supposed to simulate normally. Why would you want to change that? Critical Fertilator: The Micromanager of Macronutrients |
Posted 27-Oct-2006 06:05 | |
Alex Fish Addict 510 Posts: 721 Registered: 03-Oct-2004 | Well that would've been helpful in the first post. i thought that you could only use the OM on closed to stop it from running dry so there was no other option. So your basically saying that it wont make all that much difference if you use the om backwards as you are really just after seemingly random water flow? BTW thanks for answering a pretty stupid question matty Now another question can you run two pumps off an OM 8 way, im thinking about 2 sequence darts? (they use alot less power). If not then one hammer head it shall be |
Posted 27-Oct-2006 09:13 | |
mattyboombatty Moderator Tenellus Obsessor Posts: 2790 Kudos: 1507 Votes: 1301 Registered: 26-Mar-2004 | OMs don't have to be run in a closed loop. They can also be run dry without damage, so says paul on his forum. I've never heard of someone running 2 pumps into one OM. I'd maybe drop paul a message on the OM forum, he'd have a definitive answer. I'd think as long as the two small pipes coming from the darts would converge into a larger diameter pipe, then it should be ok. You just have to watch what kind of pressures you're putting on those pumps. I'd think one pump would be a lot easier on you. Critical Fertilator: The Micromanager of Macronutrients |
Posted 27-Oct-2006 15:12 |
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