I decided to install the T-2 but use pH control via Apex. I switched to a high quality regulator and metering valve as well. Ultimately there were a few reasons I’m not using the CRA. First is they want a pump or supply from a manifold for water input. I drip Kalk and sodium hydroxide in to my return chamber. Thus spiking pH in the reactor and wasting co2 and pH boosting. The second is I want my calcium reactor to operate at a constant output. This can be accomplished with the CRA via manual control. I had a dosing pump, pH and apex so I chose that route.
The recirc ability of the reactor is a little noisy but no worse than a regular reactor. The T-2 has co2 input at the pump exit so some of the bubble dissipation occurs in the chamber before entering the co2 reclaim design. It doesn’t chop up bubbles upon first entry.
I’d recommend the CRA to someone who is a little intimidated by a calcium reactor and has the Aquamaxx CaRx.