Tank
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Description
Lighting
Circulation
and Plumbing
Water treatment
Husbandry/Maintance
Refugium
History
Viewing Room
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Circulation & Plumbing:

Believe it or not, there are Six separate circulatory systems operating independently in my reeftank. I'll try to explain this. Hang on:

CS (Circulatory System) 1

Water exits the tank via two corner overflows, each equipped with a Durso-type standpipe constructed of 2" PVC to handle the volume; ("thanks, Rich") estimated to be over 500 gallons an hour. From there, it flows into a 125 gallon mess of a sump where it is first filtered of gross particulate matter by a 16" micron sock. From there, it may take a side trip to either the skimmer, UVs, refugium, or 'monitoring station' (more on this later) before being returned to the tank by two Iwaki 100 RLTs. The reason for the two Iwakis becomes evident when noted that there are actually two return lines that leave the sump. Each connects to one end of a PVC 'pipe' that runs the entire length of the tank at the top. From THIS pipe, a total of 7 bulkheads have been drilled into the back of the tank for returns, each bulkhead accommodating a Y nozzle. This results in 14 separate and adjustable little "powerjets" that run the whole length of the tank. I point most of these nozzles at each other to create eddies and more chaotic water flow around the "sps"


colonies but I'll also blast a newly fragged acro directly to aid in healing. Hopefully, the accompanying images will make this much more clear. If you understand all this without the images, my congratulations. The rest will be a piece of cake.

CS 2

Water exits via six (6) intakes drilled through the floor of the tank (and hidden in the rockwork) and is sent directly to the chiller(s) which are in a pump room on the other side of a wall (more on this later too). It is then pumped back to the tank through it’s own return pipe and through 4 bulkheads which have been drilled along the length of the tank along the bottom (also hidden behind the rockwork), by an Iwaki Walchem Model MDM-400. These bulkheads also terminate in Y split nozzles creating in effect 8 more separate returns. Hopefully, this assures water movement into every nook and cranny (whatever a cranny is) behind the reef structure.
CS 3

This is the Wavemaker Loop. Rather than using conventional powerheads which must protrude into the tank, my ‘waves’ are made by an electric actuator unit (George Fischer-Model EA 20) which is also located behind the wall because it’s fairly noisy...
Smart jump back 1
©2006 Michael G. Moye