Equipment Update
Acquired another second-hand Eheim 2028 from a forum member that I have bought equipment off in the past, then let it operate on my 4ft tank with 2 other 2028’s for a while to allow bacteria to colonize the media before transfer to the 2ft tank.
The set up with the chiller was not a problem, controlling the water flow was expected to be an issue, so stepped down the filter outflow from 16/22mm – 12/16mm then finally to 9/12mm. Reducing the outflow to 9/12 mm probably reduced the water flow, but not sufficiently as there was a real intensity to the water circulating the tank, with the consequential dislodgment of plants requiring urgent action. The Teco Chiller taps [picture below] saved me as I could adjust the water flow using those and now have a water flow set somewhat higher than what the Eden 501 could do, but a lot less than what the 2028 can do. Later on I found out via BFG [moderator] that the 2028 impeller could be swapped with the 2222 to reduce flow.
The Teco TR-10, is a smooth design that sucks air from the bottom before expelling it from the back it also has a couple of interesting features in addition to the chiller connections doubling up as taps. This chiller model also can house a UV sterilizer although I chose not to get it. It also has a silent mode which is to temporarily reduce the noise during operation. Silent mode is not recommended for permanent use and as found out, it changes the noise more than it is reduced [my impression].
The manual for the Teco is just two A4 sheets of paper of instructions, which from my perspective has insufficient technical information. For instance the thermostat reading to the user seems to be in 0.5 increments [vs Artica 0.1 increments] and I am not sure if that can be changed? The shop I bought the chiller from also showed me that the chiller can be set to start on a 0.5, 1.0 or 1.5 degree C range from the set temperature, although this is not found anywhere in the supplied documentation. Compared to Articia manual I give the Teco an F grade for supplied info, to be fair the Teco was half the price.
When in operation the noise from the chiller is ok, definitely better than the fan that I was using previously and comparable to the Articia that I have. What makes the noise really bearable is that the chiller only comes on for 6 -10 minutes each hour to reduce the tank temperature from 25c to 24c. One needs to put this time in perspective that my effective tank volume is about 34 liters [not including water in the chiller 1.5Lt & 2028 holds 9.5Lt] and that the entire setup is less than 2 meters from a permanently open window.
The Chiller & Eheim 2080 can be located together in a 1ft x 2 ft space, which is what I wanted but probably more by good luck than design as if either of them was 2mm longer this would not be possible
So all is need now are the CRS and some steady plant growth and I will be a happy man.
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