All times are UTC + 8 hours




Post new topic Reply to topic  [ 7 posts ] 
Author Message
PostPosted: Dec 3rd, '18, 19:19 
Offline

Joined: Nov 22nd, '18, 03:42
Posts: 5
Gender: Male
Are you human?: YES
Location: Morayfield, Qld, Australia
Hi all
I'm still at the planning stage and thinking about backup options for power outages.

Assuming I have a typical chop and flip IBC setup with say 12 table-ready jade perch in it, what kind of flow rate of air am I going to need to keep my jades alive on a typical Brisbane summer's day of say 35 degrees celsius, assuming I'm only aerating and not pumping any water?

Cheers
Nigel


Top
 Profile  
Reply with quote  
    Advertisement
 
PostPosted: Dec 4th, '18, 11:06 
Offline
Site Admin
Site Admin
User avatar

Joined: Mar 12th, '06, 07:56
Posts: 17675
Images: 3
Location: Perth
Gender: Male
Blog: View Blog (1)
Not really that much to keep them alive. I think the little ac/dc pumps we used were only 4l/m and they have saved some fishy butts during power outages. Of course bigger is nicer.

_________________
www.havehomewilltravel.com
Life on the road


Top
 Profile Personal album  
Reply with quote  
PostPosted: Dec 4th, '18, 12:12 
Offline
Bordering on Legend
Bordering on Legend
User avatar

Joined: Jun 17th, '07, 12:53
Posts: 336
Location: Riverland Sth Australia
Gender: Male
Are you human?: Yes
Location: Riverland Sth Australia
If you have periods of no pumping good idea to still circulate the water , rather than just a air stone in a corner , a simple "airlift" will bring the water up off the bottom of the tank .

Pic shows airlines in pipe that goes to bottom of tank and circulates the water vertically

I would get something like this for your air pump

https://www.ebay.com.au/itm/Hailea-V-10 ... SwQVdZ4YpB

I have two 20 watt pumps the same make as these , strong pumps that will push water down deep .

Problem with the little aquarium pumps is they don't push down into much water depth .

Ive used them in the airlift pipe successfully


Attachments:
Terras Tank 1.jpg
Terras Tank 1.jpg [ 293.95 KiB | Viewed 191 times ]

_________________
My System
viewtopic.php?f=18&t=12070
Top
 Profile  
Reply with quote  
PostPosted: Dec 4th, '18, 12:33 
Offline
A posting God
A posting God
User avatar

Joined: Mar 9th, '13, 10:44
Posts: 3329
Location: Loomberah NSW
Gender: Male
Are you human?: Im a force of nature
Location: I'm right here
I just run my air pumps in the middle, no need for air-lift pipes to get radial circulation. Water rises with the air from 25cm air discs about 1/3 of the way down in the FT and spreads out radially across the top, and goes back down the sides and across the bottom to the middle, helping to move any solids to the SLO.

10-15lpm should be enough to circulate the water and provide aeration in an IBC in hot weather, so long as you don't have too many fish in it. It's better to have a bit too much aeration than not enough!

_________________
My small AP system: http://backyardaquaponics.com/forum/viewtopic.php?f=18&t=16345
Larger 2nd system: http://www.backyardaquaponics.com/forum/viewtopic.php?f=18&t=24153
Solar powered Gunagulla Organic Garden
Fruit +Loomberah Wx
http://gunagulla.com


Top
 Profile  
Reply with quote  
PostPosted: Dec 4th, '18, 14:25 
Offline

Joined: Nov 22nd, '18, 03:42
Posts: 5
Gender: Male
Are you human?: YES
Location: Morayfield, Qld, Australia
Thanks for the feedback, guys :)

I was thinking of getting two (for redundancy) 720L/h air pumps with battery backup and splitting the output of each across 3 IBCs. That should give me a backup of 480L/h per IBC and still 240L/h per IBC if one of them fails during the power outage.

The pump I'm looking at is the Hopar LD-10000 (https://www.ebay.com.au/itm/Aqua-Aquarium-Fish-Tank-AC-DC-Lithium-Battery-Silent-Air-Pump-4-Outlet-720L-H-/221855769301?hash=item33a7a262d5)

I'll have to investigate the pros and cons of air-lift

Cheers
Nigel


Top
 Profile  
Reply with quote  
PostPosted: Dec 4th, '18, 14:30 
Offline
A posting God
A posting God
User avatar

Joined: Mar 9th, '13, 10:44
Posts: 3329
Location: Loomberah NSW
Gender: Male
Are you human?: Im a force of nature
Location: I'm right here
I'd be checking the actual flow rate when on battery power emergency mode ... "pulsing" suggests the rate is somewhat lower.

>> While the pump is in emergency mode it will continue to pulse air into the aquarium giving you up to 40hours of oxygen supply. Once the power returns the pump will automatically return to AC power and exit emergency mode and supply full oxygen to the aquarium while recharging the lithium battery in preparation for the next power outage.

_________________
My small AP system: http://backyardaquaponics.com/forum/viewtopic.php?f=18&t=16345
Larger 2nd system: http://www.backyardaquaponics.com/forum/viewtopic.php?f=18&t=24153
Solar powered Gunagulla Organic Garden
Fruit +Loomberah Wx
http://gunagulla.com


Top
 Profile  
Reply with quote  
PostPosted: Dec 5th, '18, 06:16 
Offline
In need of a life
In need of a life
User avatar

Joined: Jan 24th, '13, 08:01
Posts: 1515
Gender: Male
Are you human?: Sometimes
Location: Australia, Victoria, Northern Suburbs
Nigel I run all my air through a 250mm rubber diffuser like Gunagulla, the backup air is a 12v HAILEA-ACO 003 compressor, running off a 12v 45ah battery, charged by a trickle charger. I don't leave the trickle charger turned on, I found leaving it on 24/7 reduced the battery life. I only turn it on after a power outage, and then turn it off again after 48 hours.

The 12v backup compressor is connected to run through the same 250mm rubber diffuser in the fish tank, but sits idle until a power outage. The a backup safety switch I built using a 12v headlight relay, powered by an old mobile phone charger, It operates off 12 volts and not 240 volts like some on the market, it's a safer option.

The main air supply is a 240v 120L HAILEA air pump, I also run a 240v 70L HAILEA air pump as a backup up for the main pump, and both run 24/7.

I run everything off the 120L & 70L HAILEA's, that includes air to the MBBF, degassing tank, mineralisation tank, 2 x wicking beds, and a small duckweed tank. The backup 12v HAILEA-ACO 003 compressor handles all of that without any problems during a power outage.

Don't buy cheap air pumps, the little extra money good quality pumps cost are worth the extra dollars.


Attachments:
DSCN1696 (Small).jpeg
DSCN1696 (Small).jpeg [ 115.28 KiB | Viewed 147 times ]
HAILEA ACO 003 12v Compressor.JPG
HAILEA ACO 003 12v Compressor.JPG [ 56.99 KiB | Viewed 147 times ]
DSCN1727 (Small).jpeg
DSCN1727 (Small).jpeg [ 127.59 KiB | Viewed 147 times ]
DSCN1725 (Small).jpeg
DSCN1725 (Small).jpeg [ 133.75 KiB | Viewed 147 times ]

_________________
My System:
viewtopic.php?f=18&t=15600&hilit=joblow%27s+system

My Fish:
https://www.youtube.com/channel/UCtiiZv ... iWEVFANEVQ
Top
 Profile  
Reply with quote  
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 7 posts ] 

All times are UTC + 8 hours


Who is online

Users browsing this forum: No registered users and 5 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  

Powered by phpBB® Forum Software © phpBB Group
Portal by phpBB3 Portal © phpBB Türkiye
[ Time : 0.083s | 18 Queries | GZIP : Off ]