View attachment 27114
Water change / ATO tower work in progress. Scaled the design used for the display tank stand. Overbuilt for the weight it's holding but no worries about it breaking at least. Will look nicer with some panels on it. Need to get the sides on it and finish some of the tubing. Arduino controlled 4 channel relay board using float switches for the ATO trigger and Tunze pumps coupled with solenoids for each in/out RO tubing line for salt, RO and waste. Water change capacity is 6% total volume, was hoping for 10 but only have so much room next to the tank.