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Old 07-19-2010, 03:57 PM   #11
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Didn't want to start a new thread so thought Id ask here....
I have a 100 gal tank... My sump is 40"L x 16"H x 14"w (or about 38 gallons max). Will probably operate at about 24 gallons.

Here is the sump design - which I copied from melevesreef.com





Two questions:

*size of pump
is there a rule of thumb? I have one overflow so obviously I don't want to pump more water than the overflow can handle.

*Type of pump
My previous pump was submersible.. what are the pros and cons to submersible vs. non submersible?
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Old 07-19-2010, 04:12 PM   #12
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you need approx 6-7 times dt size,so around 700 gph, again depending on head and return pipe size for the pump size.
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Old 07-19-2010, 04:18 PM   #13
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you need approx 6-7 times dt size,so around 700 gph, again depending on head and return pipe size for the pump size.
Thanks - and any preference as to the type of pump? (ie. submersible or non?).
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Old 07-19-2010, 04:21 PM   #14
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im going to shy away from the extra plumbing lol.

ok, in the sump: protein skimmer, heater, fuge - chaetamorpha (in abundance, but thanks for asking :P) and a little ulva (both from a neighbouring tank)
also in the loop: inherited a vectron 600 UVS to finish off the reamining little nasties in the water

im excited to get the ball rolling. just one of them things, isnt it lol.
build thread soon! just need to narrow down the equipment i guess.

thanks david!
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Old 07-19-2010, 04:24 PM   #15
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Submersible
Pros - Don't have to worry about leaks in plumbing near the pump; it's in your sump
Pros - Heats the water, you need fewer heaters
Pros - Don't have to worry about drilling and installing bulkheads in your sump
Cons - Heats the water. If you always run close to the max temp when your lights are on, this could cause issues. It also gives you less control of your tank temp



External
Pros - Does not heat the water nearly as much
Pros - You can get larger, more powerful pumps that consume less electricity reducing your operating expenses
Cons - You have to worry about doing more plumbing - making sure that it doesn't leak, cost of parts, etc.
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Old 07-19-2010, 04:27 PM   #16
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i like the idea of the staggered sump sections

although, it would be cool if it all waterfalled into the fuge instead of into two channels. i dont see the point of splitting the flow.
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Old 07-19-2010, 04:42 PM   #17
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Thanks - and any preference as to the type of pump? (ie. submersible or non?).
just personal choice really.I use a submersible only because if there's a problem with it I can swap it with a power head as a temp basis.
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Old 07-19-2010, 04:45 PM   #18
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i like the idea of the staggered sump sections

although, it would be cool if it all waterfalled into the fuge instead of into two channels. i dont see the point of splitting the flow.
it's just so you can have a slow through for a fuge section rather than a sump,and fast throgh to you skimmer and on
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Old 07-19-2010, 06:39 PM   #19
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yes, choking the pump back at the exhaust port is good for it, believe it or not. it will cut it's electric usage and lengthen it's life.


i prefer an external pump. for the above mentioned reasons and also that it's not sitting in the sump, taking up space, and they just seem to be built better.
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Old 07-20-2010, 01:40 PM   #20
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I'll have to look into it. Thanks again, X!
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