tdwright1971
Aquarium Advice Activist
I see a problem with your design, the part inside the aquarium need to be lower than the t. diy overflows - Oscarfishlover.com
tdwright1971 said:or you could go all crazy an do something like this
I see a problem with your design, the part inside the aquarium need to be lower than the t. diy overflows - Oscarfishlover.com
or you could go all crazy an do something like this
coffeetwitch said:the decision to do what i did was bases off of post #3 here http://www.aquariumadvice.com/forums/f20/all-pvc-overflow-flow-rates-171171.html
I also read that his syphon break is only an inch below the waterline, your t is your syphon break, if is lower than the u bend on the inside of the aquarium then it won't break the syphon until it has emptied your overflow. You need to maintain the water in the pipe so that when the water starts to go into the pipe it already has the syphon. You can either raise the syphon break or lower the inside u to maintain the syphon when your pump shuts off. Hth
coffeetwitch said:yeah thats what i was thinking. and easy to clean if need be...
guys im so lonst on this plumbing now.
some of these questions i have asked before, sorry for the repitition.
so i make a smaller overflow for the fuge. 1/2pvc "flows 200" gph.
two overflows. one pump, so i would need a pump capable of ???
another option is a pump that flows??? and t on the return or supply line to the fuge?
or i keep this overflow and redo my sump to its more of a linear progression to the pump
Ausfish said:You don't "need a pump capable of" anything since your overflow will only drain as much as your pump returns into the tank. You just can't get a too big pump since all the water your overflow can't handle to return into the sump will stay in the tank. Hope that helps a little. IMO 2 1.25" lines should handle your 750 or 800 gph just fine.
coffeetwitch said:I was snooping around in the DIY area. Was chatting with a guy about his twin pipe set up. I have moments where things make sense, since? Whatever. Anyway, I'm still lost on flow rates but I'm not shy on building anymore. I'm digging up the idea from idk how many pages ago, and build an overflow out of 3/4 just for the refugium. And the 1" that I have for the skimmer. And run the mag 9.5. If it's wrong I have filtration that works until I fix it. If I have to build again oh well, I like making stuff. If I have to change pumps I will. Trial and error right? At this point I'm curious about this stuff and would like to learn facts behind some of this.