So I am using 2 32g brutes stacked in a DIY mixing station (see attached photo) and have found a flaw. The only reliable way to see how much water is in the top container is to get the ladder, open the top and look down. I have seen other designs that used some uni seals, a clear tube and some fittings, but as this is sitting in my office on hardwood floors, I dont want another potential leak source. So I have been thinking how can i accurately determine at a glance how much water is in the freshwater/ATO container. Here is what I have come up with and I would like your thoughts.
Take a piece of PVC pipe, thinking 1/2" or maybe 3/4" as I think I have some sitting around. Mount it vertically inside the top container, either to the side wall or maybe to the lid, havent decided what would be best but it will need to either have holes or be above the bottom as to allow the water inside. Then get an acrylic rod and attach a reef safe boyant material (since its going in my top off water and the water I used to make water change water). If I put the acrylic rod inside the pvc tube with the boyant material at the bottom, and drilled a hold into the lid of the brute container, the acrylic rod would be elevated out of the top of the container as the water level went up and down. This is kinda what I am thinking
Black box is the trash can, red box is the PVC tube and the blue line is the Acrylic rod. As long as the material I get will float with the weight of the rod then I should be good to go. Any idea what material to use for the float? fishing bobber?

Take a piece of PVC pipe, thinking 1/2" or maybe 3/4" as I think I have some sitting around. Mount it vertically inside the top container, either to the side wall or maybe to the lid, havent decided what would be best but it will need to either have holes or be above the bottom as to allow the water inside. Then get an acrylic rod and attach a reef safe boyant material (since its going in my top off water and the water I used to make water change water). If I put the acrylic rod inside the pvc tube with the boyant material at the bottom, and drilled a hold into the lid of the brute container, the acrylic rod would be elevated out of the top of the container as the water level went up and down. This is kinda what I am thinking
Black box is the trash can, red box is the PVC tube and the blue line is the Acrylic rod. As long as the material I get will float with the weight of the rod then I should be good to go. Any idea what material to use for the float? fishing bobber?





