2mm and 6mm fish food are now in stock as at 1 Jan 2023 December View Fish Food
Practical Aquaponics and Integrated Aquaculture Technology
Murray Hallam is probably the best-known face in the world-wide Aquaponics movement. Murray is by nature an innovator and in his Research & Development facility has perfected many new methodologies for commercial farm Aquaponic systems.
At Practical Aquaponics, we have a range of information suitable for the novice to the expert. Browse our blog, register for our Aquaponics Courses, Workshops and Seminars or buy kits, books, DVDs and many other aquaponics necessities in our shop.
Proven and tested, there are hundreds of our kits in operation in every state of Australia and we have exported our kits to the USA, Hong Kong, New Zealand and Nassau. The wonderful thing about Aquaponics is that almost anyone can participate and get to grow some clean, healthy vegetables and fish.
Everything you could possibly need to set up an Aquaponics farm or home system is found in our online store. Whether you are looking to do Aquaponics in Brisbane, Perth, or anywhere in between, we’ve got you covered with the best range of products Australia-wide.
Our Aquaponics Photo Gallery is constantly growing to include images from Murray's Global Aquaponic Trips, Commercial and Home Systems, Greenhouse Tours, Master Classes and of course the all-important produce in the Practical Aquaponics section.
Our Blog contains a wealth of information spanning a wide range of Aquaponic topics, from general news to some of the well-kept secrets to success. This is a must view area for everyone interested in Aquaponics from the budding beginner to the seasoned aquaponics farmer.
Practical Aquaponics > Blog > CHOP System
A second pump built into your CHOP Mark 2 operating system to provide redundancy. It may seem to be a contradiction to add a second pump to a CHOP system but it is not such a bad idea. Pumps are a mechanical devices and therefore are subject to failure. Even the most expensive pump will give out one day. Obviously we will fit the best pump we can afford to our CHOP system, and being prepared with an additional pump at the ready is a good idea.
It is very upsetting if you have a pump failure and there is no readily available replacement. With no water movement and exchange the fish tank will quickly become polluted and fish deaths will soon follow. Pumps have a uncanny ability to fail in the middle of the night, at weekends or when you are away.
Fit a second pump to provide water security for your CHOP Mark 2 system.
At the very least, have a replacement pump on the shelf at home complete with fittings to allow you to make a rapid change if it becomes necessary. Have the joining system already attached so that rapid changes can be made.
Left:- Snap on fitting. Right:- Barrel Union. Examples of ways to quick connect and disconnect your spare pump.
Another way is to have the second pump actually plumbed into the system ready to go at the flick of the switch. I run two pumps on each of my two bigger systems I have running. The Quad kit and the Homestead kit. I am gradually moving through all my other systems and fitting a second pump to each.
Each pump is fitted with it’s own independent pipe system leading from the sump to the fish tank or grow beds, in waiting ready to work in an instant. If pump “A” fails or needs maintence down time, pump “B” is brought on-line. Have both pumps sized (capacity) so that each pump is able to run the system by itself. A little over capacity is not a bad thing in this case. Additional expense in pipe work is the downside to this plan and if the operating pump fails for any reason, there is no automatic switch over to pump”B”.
Run both pumps in parallel. This is my preferred option. It is easy to set up and is worry free. Have both pumps sized so that one by itself will just run the system but has no over capacity. Having the pumps sized down a little will save on energy costs while giving the system safety you desire. A bit like a single engine or twin engine aircraft.
Here is how to connect the plumbing so that both pumps can be hooked up ready to go. I am showing two alternative pipe layouts for your consideration.
See as per the drawing. Each pumps is run via a pipe through a “Non Return Valve” then the two pumps output pipes meet at a “T” joiner to bring both pump outputs into the one line where the water is then run to the grow beds and fish tank.
If one pump fails the other pump will carry the load. The water will be prevented from flowing back through the failed pump by the non return valve.
Alternatively, one pump can be run directly to the fish tank and one to the Grow Beds with a balancing pipe between.
Pump and Pipe Layout "B". This layout will deliver more water to the fish tank and grow beds than layout "A" This is because we are using two pipes instead of one to deliver the water. If one pump fails the water from the operating pump travels by the balancing pipe to the other line and is prevented from back flowing into the sump by the non return valve.
It is important to have both pumps of the same capacity model and brand. If one pump has more capacity than the other it will do all the work and the other will be “lazy” It is also important to have correct sized pipe to carry the volume of water easily. Too small pipe diameter will cause reduced flow and loss of pump performance.
This arrangement works well with any style of system layout. If you are not running CHOP or CHOP Mark 2 this pump arrangement will work well for you eliminating one possible failure point in your Aquaponics system.
Murray Hallam at Practical Aquaponics.
Posted By Murray Hallam on 19th December 2011
Updated : 19th December 2011 | Words : 822 | Views : 3349 | Comments : 2
skip_previousPrevious Topic | All Topics | Next Topicskip_next
Just wondering if the Homestead Kit can be modified easily to the CHOP 2 system, or if indeed the kit comes with this option when purchased?
loving all this info cant wait to get started!
Posted By Mary-ann Pool on Wednesday 1st March 2017 @ 14:48:54
It is CHOP2
Posted By Murray on Wednesday 1st March 2017 @ 14:48:54
(This name will display online)
Learn About Aquaponics : Post Topic
Aquaponics Made Easy : Post Topic
Aquaponics Secrets : Post Topic
Aquaponics Systems : Post Topic
CHOP System : Post Topic
Floating Raft System DWC : Post Topic
Commercial Aquaponics : Post Topic
Fish Talk : Post Topic
Tech Talk : Post Topic
General News : Post Topic
Workshops & Field Days : Post Topic
The CHOP system is an acronym for “Constant Height One Pump”. This is the most effi . . .
Posted By Murray Hallam on 3rd June 2014
Views : 4242 | Comments : 0
A second pump built into your CHOP Mark 2 operating system to provide redundancy. It may seem to be . . .
Views : 3349 | Comments : 2
The TotePonics (IBC) kit we built for the recent photo shoot is just powering along. The growth is j . . .
Posted By Murray Hallam on 16th December 2011
Views : 3275 | Comments : 5
Our 585 Litre Grow Bed Is Back! Manufactured Specifically For Aquaponics. Made In Australia From Fibreglass With Marine-grade Gel Coating And Resins. ...
from $847.00 buy online
Feed Four People Year-round With The Indy 23 Aquaponic System! Build Your Own, Using This Step-by-step Instruction Set. ...
from $395.00 buy online
If You're Working On An Aquaponics Project (or Thinking Of It), A One-hour Consultation With Murray Hallam Can Help Clear Up Some Of The Questions You ...
from $170.00 buy online
For all things Aquaponics ... Practical Aquaponics is your number #1 choice for products and information. Give us a call or drop us an email about your farm project today.