Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 08-08-2007, 10:18 PM   #1
Aquarium Advice Newbie
 
Join Date: Aug 2007
Posts: 9
Ok...I feel pretty stupid asking this, but I can't figure it

Hey guys,
I was thinking about getting a wet/dry filter with a sump under my tank. I've looked online, but I still don't think I've found a satisfactory answer that answers my question...

I understand that the water intake from tank to sump is done with suction...no problem there. However, when there is a power outage, I realize the overflow box will only "feed" the sump a certain amount of water(so the sump doesn't overflow). Now, here's my question...

When the power comes back on, how does the tank to sump suction start up again? Or can it? I would think when the power goes out, the suction would grab all the water in the overflow box and then suck air till the suction is broken. When the power comes back on, the filter in the sump will push the water back to the tank, and subsequently the overflow box will start filling up again...but with the suction broken, the sump won't get any more water....right??
__________________

__________________
alphadog808 is offline   Reply With Quote
Old 08-08-2007, 10:33 PM   #2
Aquarium Advice FINatic
 
Join Date: Jan 2007
Location: NJ
Posts: 662
It doesn't work by suction, it works by gravity. The water in the overflow will drain downward into the sump. It stops when there is no water in the overflow to drain or the standpipe is above the water level. You can only drain what is in the overflow. When the power is out water is not pumping into the tank so it is not going into the overflow so it cannot go into the sump. When the power comes back on the water is pumped from the sump into the tank eventually filling the overflow and by the forces of gravity, flowing downward into the sump.
__________________

__________________
C/
chase33 is offline   Reply With Quote
Old 08-08-2007, 11:04 PM   #3
Aquarium Advice Newbie
 
Join Date: Aug 2007
Posts: 9
chase, thanks for the reply.

I guess I should be more clear...the tank to sump is done by gravity, not suction. I've done this in the past when draining my tank or doing some cleaning, etc...however, I noticed that when I got near the bottom of the tank(almost no water left), the hose would start grabbing air along with water...once I got enough air in there(due to lack of water left), I wasn't able to get any more water to go through...

As in the above, what I'm wondering is when the power goes out, the overflow box gets emptied by the gravity "suction" in the "candy cane"(haha) tube. I assume the overflow box will get emptied(till like the above example, too much air gets in) and the water will not restart till the "candy cane" is primed again...

Maybe my confusion lies in how the water gets from the overflow box to the sump...but from what I've read, it's similar to like what I mentioned above...like how you'd start sucking on the hose to start the water...(ugh, I remember getting a mouthful of water more than once!)
__________________
alphadog808 is offline   Reply With Quote
Old 08-08-2007, 11:07 PM   #4
AA Team Emeritus
 
Join Date: Aug 2002
Location: Louisiana
Posts: 7,224
Send a message via Yahoo to Hara
actually the J tube sits below where the water level drops in the box and does not lose its prime if it is set up correctly.
__________________
Hara is offline   Reply With Quote
Old 08-08-2007, 11:09 PM   #5
SW 20 & Over Club
 
ccCapt's Avatar


 
Join Date: Mar 2004
Location: Northeast PA
Posts: 5,362
Send a message via ICQ to ccCapt
The overflow box doesn't empty completely. There will still be some water in it and the u-tube will still be filled with water. When the pump restarts and the tank starts refilling, the higher water level will push more water into the overflow and it will start draining back into the sump.
Just make sure your sump is big enough and you keep the water level in it lower enough so if the power does go out, your sump can handle the extra water from the tank and not overflow.
__________________
ccCapt is offline   Reply With Quote
Old 08-09-2007, 02:39 PM   #6
Aquarium Advice Newbie
 
Join Date: Aug 2007
Posts: 9
Hara, which side of the J tube is below the water? Also, thanks for the help guys...I think maybe I'll just buy one and assume this works..
__________________
alphadog808 is offline   Reply With Quote
Old 08-09-2007, 03:13 PM   #7
AA Team Emeritus
 
Join Date: Aug 2002
Location: Louisiana
Posts: 7,224
Send a message via Yahoo to Hara
The tube sits inside a box, which sits inside the tank...the box has slits into it to let water in. The water level is adjusted by moving the box up and down. The tube hangs into the box.

Trust me, they work
__________________
Hara is offline   Reply With Quote
Old 08-09-2007, 05:03 PM   #8
SW REEF 18+ YEARS
Community Admin
 
melosu58's Avatar



Tank of the Month Award
 
Join Date: Oct 2004
Location: Virginia
Posts: 38,249
I use to have one and they work. They wont lose their prime unless you pull it out and air gets back in there. Many a time the power went out and restarted with no problem.
__________________

__________________

SITE ADMINISTRATOR

You can view many of my fish and corals in my photo albums in my profile.

View my tank


AA Community Rules|AA TOS

Forums 101 - posting, accounts, basics
melosu58 is offline   Reply With Quote
Reply

Tags
eel, skin

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Oh NO (again)- I feel so stupid. fishygurl Freshwater & Brackish - Planted Tanks 7 02-19-2006 10:03 PM
boy do I feel stupid... Menagerie Aquaria Off-Topic 13 11-19-2005 09:57 PM
well now I feel stupid. rubysoho Freshwater & Brackish - General Discussion 2 09-03-2005 06:27 PM
I feel so stupid luntiz Saltwater & Reef - Sick Fish or Coral 26 04-27-2004 05:27 PM
BOY! do i feel STUPID! HappyLoner Freshwater & Brackish - General Discussion 12 07-11-2003 06:34 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 08:20 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.