Really nice setup!Dosing Containers
I will be dosing Calcium and Alkalinity to the tank to run elevated levels (12dkh Alk and 465 Mag). My goal for the dosing containers was to have something that I could put near the tank but hide in the back while also getting as large a container as possible. Since the components are stable once mixed, I wanted a set-it and forget-it method that I could fill and not have to worry for quite some time.
I ended up using airtight 55qt pet food storage containers which gives me right around 12-13 gallons of mixed Calcium and Alkalinity solution. They are on wheels which makes it easier to get them into place behind the side stands on the tank. These were the most durable I found and held water without any issue.
I started by drilling a whole in the lid to accommodate the ¼” bulkheads for the dosing tubing. I’ll be using my Apex to let me know when the mixture is too low and to shut down the DOS when it reaches that point. For this I used the optical sensor with magnet. I drilled out the lip just enough that the cable will past through and still allow the lid to close. From there, I have the magnet directly on the bottom of the container and zip tied the dose line just above the magnet to ensure it isn’t pulling directly from the bottom of the container as well as ensure it always stays below the cut off point of the optical sensor.
Since the containers are airtight, I drilled an additional small hole in the lid to allow air in as liquid is pulled out.