I’m a bit confused as to how the sump and DT water levels are related. I thought it was as simple as the DT would always stay the same level as my overflow, while the sump level would fall due to evaporation. I just set up my 200g with about 40g in the sump and I’m having a hard time keeping it all perfectly level.
I’m judging the DT water level with my emergency drain. I want to keep it at a very slight trickle so the water level is right up to the edge.
I got the sump right where i want it and marked it with a piece of tape. Came back later that night to top off and I poured water into the sump to get it to where I want it. This ended up somehow pushing my DT level a bit higher as the emergency started to get a good stream of water in.
Also - when I don’t top off for a while I notice the water level around the emergency drain is lower.
The entire time, however, my pump is completely submerged in the sump. I can’t wrap my head around how the DT could be any bit higher or lower when the pump is steadily pushing the same amount of water nonstop.
What am I missing here?
My plan is to put the ATO in the return part of the sump and just keep that level as it’s the lowest baffle.
I always thought once I got the sump level stable the DT and overflow would stay level. As it is now I’m having to constantly adjust my gate valve to keep everything where I want it.
Thanks.