chesterthehero;1998916; said:nah... its super easy.. the overflow i have is the same overflow you will find if you search.. the one in the thread with like 235807208375 pages.. just follow the directions.. it will make sence once you finnish it.. if you try to understand it then build it you will scratch yer head raw with fustration..
the water flows like a book.. left to right
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-first section is where the overflow and syphon enter the sump (all you need is an overflow.. i have a syphon by choice)
-first wall forces the water UP and across the drip plate (i used an undergravel filter. you want something that makes it "rain" on your media
-under the drip plate is media this is where the good bacteria live and the "filtering" takes place
-botton drip plates just holds the media off the bottom to allow water to flow freely.. i have my heaters down there as well
-the next wall just holds the media in place
-then another row of media.. there no such thing as overfiltering
-next short wall sets the water level for the sump.. in the event of a powerloss i lose about 8 gallons out of my tank.. with my water level where it is in the sump i have room for another 3 gallons before the sump overflows (the plumbing is done so that wont happen those are lil tricks you can learn as you build this is just to give you the basics)
-the last area is obviously where the pump is.. this pumps the water from the sump back into the tank
you dont need to use a fishtank to make one of these.. its just something nice to look at..
how effective is an undergravle filter? and how did u set it all up? what pumps the water out of the tank? sorry about all the questions.lol im a noob