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Ok, my bad! Good luck with the project :-) I just added a second canister filter the other day. Works very good of course, but it's not the cheapest solution, and does not answer your question.

Eheim produces T Junctions. Just google it :-)

Well, for monitoring the water quality, I really don't have much right now, but here is what I have... For reading pH I use the pH/ORP Adapter from Phidgets, together with a descent pH Probe. Phidgets Inc. - 1130_0 - pH/ORP Adapter Wiring is easy. 5V, GND and an analog pin on the arduino. Do an...

One more thing. I was looking into lowering the entry pipe of the overflow (using a servo or similar) prior to pumping water in the aquarium, but I will need to build a new overflow which is less rigid, so it will wait until my next vacation. Going back to work in Egypt next week, so I will not...

Yes, you are absolutely right. Since my aquarium is approx 240 litres (minus gravel and stuff) I'm guessing that I loose about 1 litre of clean water for every 20 litres that are pumped in. So about 5% is returned directly back to the drain.

Yes, that is absolutely a possibility, and I tried that some time ago. There were some problems though. It gives you 2 things to control instead of just one. In my case, it created a syphon that continued until the pump was out if water, since the drain is lower than the water level of the...

A lot has happened in the last year. Completely discarded the setup I had, and built everything around the Arduino micro controllers. This allows me to monitor pH and dose CO2 accordantly. Temperature is monitored and controlled by the Arduino. Lightning is also controlled by the Arduino...

Back at sea, and the project is set on hold for another month. I don't know how I would implement a toilet flusher into my aquarium... Not sure that I would like that anyway :ermm: Anyway, the system is up and running, sort off... I did not receive all the ordered things before leaving home, so...

Tank you for the tip but I can't seem to find the topic you mention. I did see some problems with my wiring already (got some advice from our engineers), so it will be a bit different (simpler). Hopefully I will be ablo to start this thing in about 10 days or so. If interested, I could keep you...

Hi all, New to this forum, any aquarium forum in fact. Being a sailor I was stupid enough to get myself a Juwel Rio 240. The problem is that I’m away from home about 30 days at a time, and sometimes my girlfriend is away for work also, so the aquarium will be left alone for several weeks at a...