Wow, I am subscribing, this looks like quite the build.
I don't have a lot to add, other than I am setting up a dual tank (freshwater) system myself in the next couple months, and I can't wait watch you and get tips. mine are going to be one above, and one below with a sump in the room behind.
The one thing I was wondering, is why mess with the overflows? Just drill the tank, and stick a pipe or 2 through with screens on them. They could be right at the water level, or come from the bottom up to where you want the water level to be at.
Also it looks like there are some open spaces over the arches downstairs. Could you run your plumbing through that? Run the drain pipe from the rear of each tank, behind that floor beam, and into that pocket over the arch? It's hard to know exactly how thing are lined up not seeing it in person, but it sounds good!!!
I hope it goes well, and I'll be watching with keen anticipation!
I don't have a lot to add, other than I am setting up a dual tank (freshwater) system myself in the next couple months, and I can't wait watch you and get tips. mine are going to be one above, and one below with a sump in the room behind.
The one thing I was wondering, is why mess with the overflows? Just drill the tank, and stick a pipe or 2 through with screens on them. They could be right at the water level, or come from the bottom up to where you want the water level to be at.
Also it looks like there are some open spaces over the arches downstairs. Could you run your plumbing through that? Run the drain pipe from the rear of each tank, behind that floor beam, and into that pocket over the arch? It's hard to know exactly how thing are lined up not seeing it in person, but it sounds good!!!
I hope it goes well, and I'll be watching with keen anticipation!