Reef Central Online Community

Home Forum Here you can view your subscribed threads, work with private messages and edit your profile and preferences View New Posts View Today's Posts

Find other members Frequently Asked Questions Search Reefkeeping ...an online magazine for marine aquarists Support our sponsors and mention Reef Central

Go Back   Reef Central Online Community > Special Interest Group (SIG) Forums > Large Reef Tanks
Register Blogs FAQ Calendar Mark Forums Read

Notices

User Tag List

Reply
Thread Tools
Old 10/21/2018, 04:31 PM   #1
DieselBees
Registered Member
 
DieselBees's Avatar
 
Join Date: May 2018
Location: Santa Clara
Posts: 3
New to large tank - ?? re Return Flow

Hello,

I'm new to this site. Not exactly new to the hobby but returning after a hiatus. Setting up very large tank (which I have not done before) and trying to determine size of return lines. Return pumps (2) are Abyzz A200 DC Controllable (rated at 4,400 GPH). With head pressure, resistance, etc. taken into account, I figure I can easily get around 2000-2500 gph each. I assume I can do this and not run them at full power. Have two for redundancy/back up and so I don't have to run at full power.

My main question is - with one of these pumps, can I push that much water through a 1" bulkhead opening. I'm setting up a BeanAnimal system with 1.5" bulkheads and pipes. I'm not exactly sure how much a 1.5" BeanAnimal will do with full siphon but figured it to be close to what I need which is around 4000 GPH. I have 2 return bulkheads drilled at 1" and was considering whether or not I need to make them bigger. Will 2 one inch return lines move that much water? I can use 1.5" return pipes but will need to reduce down to get through the bulkhead. Will that be enough?? Or do I need bigger or more return lines? Any input would be appreciated.

400G display tank. Want to do mixed reef. Have tank but not yet set up...


DieselBees is offline   Reply With Quote
Old 10/23/2018, 07:21 AM   #2
Blue Tang Clan
Registered Member
 
Blue Tang Clan's Avatar
 
Join Date: Nov 2017
Location: Maryland
Posts: 44
If you already have 1" return holes drilled in the tank, I wouldn't "make them bigger" -- adding another would make the most sense.

You won't get 4000 out of a siphoned 1.5" drain, but it should be plenty. Turnover within the tank (water movement) is often more important than how fast you get water out and back into the tank.


Blue Tang Clan is offline   Reply With Quote
Old 10/23/2018, 03:35 PM   #3
DieselBees
Registered Member
 
DieselBees's Avatar
 
Join Date: May 2018
Location: Santa Clara
Posts: 3
Thanks for replying! Do you think I need another return line? Or should the two I have be sufficient.

Thanks again for the input. Much appreciated.


DieselBees is offline   Reply With Quote
Old 10/23/2018, 06:40 PM   #4
Blue Tang Clan
Registered Member
 
Blue Tang Clan's Avatar
 
Join Date: Nov 2017
Location: Maryland
Posts: 44
The two you have should be plenty to power a 1.5" siphon drain. Use the extra power from the pumps to also power a manifold.


Blue Tang Clan is offline   Reply With Quote
Old 10/23/2018, 09:35 PM   #5
DieselBees
Registered Member
 
DieselBees's Avatar
 
Join Date: May 2018
Location: Santa Clara
Posts: 3
I actually have up to two 1.5 inch siphons. Well the second one is not supposed to pull a full siphon. It's supposed to have a column of air in the middle. The third 1.5 inch drain line is emergency only. It's a BeanAnimal set up.

Thanks for the info. I can always tweek down the road if needed.


DieselBees is offline   Reply With Quote
Reply

Thread Tools

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 On

Forum Jump


All times are GMT -6. The time now is 09:15 PM.


TapaTalk Enabled

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2018 Axivo Inc.
Use of this web site is subject to the terms and conditions described in the user agreement.
Reef CentralTM Reef Central, LLC. Copyright 1999-2014
User Alert System provided by Advanced User Tagging v3.3.0 (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.