Advice on 2 tier overflow set up

[Lgw]

Just after some advice/criticism/opinions on this design. My plan was to have overflows on all 6 tanks, flowing from 1 to 1a, 2 to 2a and 3 to 3a. And from the 'a' tanks to the sump. My plan for the return is to have a big spray bar running up a T to the top tanks. Will this work? Thanks in advance! And I apologise for the dodgy drawings!



just to make things more exciting the drawing is upside down! Lol

 

[wednesday13]

Ive ran plenty of setups like this with no problems, imo the tanks might stay cleaner with 3 sumps but ur design sure saves electricity. Heres an example of one of mine. Sump is on the left.

Aaand here is another lol


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[wednesday13]

Ive also had 3 stacked before all drilled that drained into one another freshwater but i ran h.o.b.'s on the lower tanks also...here is another drilled stacker system i made/sold to a customer. I enjoy gravity fed systems.



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[WiredDragon93]

Is the overflows set up like how i sgowed you mine?

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[Lgw]

Thanks guys, I was also wondering if there was any need of having an overflow (see pic) on the 'a' tanks or can I simply stick a pipe at the desired water level connected to the top tanks drain pipe and use gravity from the top tanks to drain them.

 

[Lgw]

I have absolutely no idea why my photos are upside down lol. Maybe because I'm in Australia? Who knows?

 

[Lgw]

All good, figured it out

 

[rbarn]

Would be better if both levels emptied into the sump. Pictured setup is susceptible to a flood

 

[wednesday13]

Would be better if both levels emptied into the sump. Pictured setup is susceptible to a flood

How r these setups susseptible to a flood? Theyve been running for 3 years with no problems? The desired gph on each tank is exactly the same whether theres a pump on each tank or not.

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[wednesday13]

Is the overflows set up like how i sgowed you mine?

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Nope all these tanks pictured are drilled but same concept yes

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