one canister two tanks!

i just set up my 75 gal oveflowing into a 15 gal planted "sump", the two being connected with a single eheim 2217, intake in the sump, outlet in the main tank...it works GREAT. the head height is less than 3 feet but the flow is strong! the overflows are simply two 1" drilled holes on the side with bulkheads and a 90deg elbow down. the two 1" hoses merge and become a 1/2" just like the 2217's output. no overflow box! and its pretty quiet! once i master this, i'm gonna change out the 20gal for another big one, say like 50-60gal, and plant it heavily.

am i missing something?

sagar

mmm...no because the flow through the overflow equals the 2217's outlet.

my drain hose is actually slightly bigger than the 2217's output (being not metric ), this gives me some room for the pipe to lose flow over time while keeping the overflow quiet also!

if the strainer clogs, the 2217 runs dry (also bad) but nothing overflows. i've got extra space in my sump for power out/clog out. tested it.

good to know you've done this. mine's been running for 10 days now.

someday, i shall put a mattenfilter in the sump and trade the 2217 for a 1250 .

yep! its no different from any sump setup except you gotta a canister instead of a pump. will gladly take some pics today and post em!

sagar

both tanks. an res and 8 white clouds on top. its still minimal. i'm thinkin more driftwood and java moss. some more minnows, a couple guppies and tetras on the bottom. i got anacharis, amazons, java moss, and one little anubia growin in there. its not really a sump actually, cause its gonna be a display tank too . that horizontal hose coming off the side of the bottom tank serves no purpose, ignore.





the contraption to change two 1" hoses to a single 1/2" hose". i've found that if the overflow hose has the same size as the return pump, the drains become VERY quiet and the bubbles dissappear in the sump! but keep it slightly larger than the 1/2" for safety (use one metric, one not). this kills flushing sounds by 75% or more as opposed to a single 1" hose. there is still some sound. HOWEVER, i'm planning to get one of those hose tighteners and restrict the flow to further quiet the overflows. this would always need to be kept so that there are still a few bubbles in the sump. eventually you would need to loosen it so more bubbles come, or clean the pipe!




the outlet from the overflow into the sump. notice the peaceful bubbling!




the strainer of the 2217 inside the sump




the outlet from the 2217 into the top tank




the main tank surface (that's my turtle, balasubramanian. balu for short )



a closeup of the overflow from the side. you can see the nylon net i'm using temporarily as a preoverflow (to block fish from goin down) this also ensures that the drains will never ever clog. even if that net clogged the water would just overflow over it!



another view of the overflows