Polygeyser Biofilters

[NetsTen]

Hello all!

It's the intern again! A quick question about polygeyser biofilters. Do they work/work well in a gravity-flow system? Or do they require a pump? Anyone who has had experience with one and has any information to share would be greatly helpful!

Thanks!

Ashley

[Murray]

Hi Ashley,
They do work very well, but expensive for a home system, if you planned on purchasing a commercially manufactured model that is.
Possibly a little "over kill" for a home system too I would think.
A simple trickling bio filter like the type Gary uses are very simple to make and work very well, if you wanted to have a stand alone filter system.
A stand alone filter is not really necessary in a home aquaponics system. A nice addition to a home system, but not really necessary.

Ordinary gravel grow beds 300mm deep are the simplest way to go for a home system. They are the bio filter and the veggie garden all in one, and they work extremely well.
Grow beds employing a variety of media from low cost readily available drainage gravel, to very nice expanded clay pebbles, are in use by hundreds (possibly thousands by now) of aquaponics enthusiasts throughout Australia.

[djs-sa]

Murray I think ashley's system was for a school or the likes?

I'm looking at a polygeyser 7'3" i beleive that it can be gravity feed if you have the height difference.It also can be pumped and some polygeyser's come with backwash option (seperate blower pump required

[Outbackozzie]

Still would not be required for a school system.

[djs-sa]

why not outback?
you dont know fish stocking rates feed cycles etc, garden bed set up

[djs-sa]

With reading netsten first post again I would be using them if u can afford them(already got them),
Peoples netsten is removing the floating raft and replacing with a plastic raft system. No grow bed media so yes, you need some sort of bio filter to convert amm. to nitrites and nitrite into nitrate

[Outbackozzie]

Schools dont usually have a big budget, so I am pretty sure that the suggestion already mentioned of a barrel filled with media would probably be more affordable, and just as effective.