DIY Large canister filters

• To: "'Aquatic-Plants Digest'" <Aquatic-Plants at actwin_com>
• Subject: DIY Large canister filters
• From: Marque Crozman <marquec at gastech_com.au>
• Date: Wed, 18 Dec 1996 15:08:27 +-1100
• Encoding: 29 TEXT

Chris asked about the large canister filters that I talked
of earlier this week and wanted to know a bit more. He
uses the 200 litre sized ones, filled with spun plastic 
mat type material that is about 4 inches thick that is 
commonly used for trickle filters. It is rolled up and slid
into the barrel. The unit sits below the tank, fed from an 
overflow with a prefilter. The PVC inlet pipe is connected 
to the lid of the barrel, with the outlet on the side of the base.
The outlet feeds a small Onga pool pump that pumps back
to the tank. 

His pond uses a similar system, but uses three barrels 
connected one after another, the final one being filled with
sand, having a network of PVC pipes inside like a 
conventional pool sand filter. 

He primarily grows plants, but has Aussie and Papua-New Guinea
rainbows in them aswell. He did use metal halide, but has just
switched to 6700K flouros. BTW- his plants are just wonderful.

On another tack, Sydney Aquarium use PVC sewer pipe and 
step down fittings for their canister filters, each one costs about
AU$5 in all, and they use them in great quantities. They have
screw on fittings and can be removed, cleaned out and replaced
in about five minutes. Much cheaper than the commercial 
equivalents.

Marque APD - ANGFA(NSW)

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