So I am picking up a 750gph little giant 3 for my sump return. The output is 1/2 inch so do I use 1/2 inch returns to the tank? I'm thinking a Y piece leading to 2 1/2 pvc as the returns....or should I be using a larger diameter pipe? I understand the overflow rates for gph and diameter but I dont get how diameter applies to a pump...
Thanks for your help
NICE....That is a perfect explanation....honestly thank you
I'll probably have to play with the sizes then, I'll start with (2) 1/2 inch outputs and if its to much maybe move it up a diameter or add another 1/2 inch
Thanks this really helps me out
Also understand that a pump's outflow rate is at the pump head. Aquarium pumps usually show the flow rates at #ft head away from pump. Depending upon impeller design and plumbing, a 750 gph pump may only have 1/2 it's flow rate after 5 ft of plumbing and a 4 ft rise from pump level.
spraybars are a really easy way to keep a single 1/2" line from being a cannon.. extra connections and lines are not really needed to fix this.. my rio is rated for 660gph at 4' of head.. it sits at about 2' a single 1/2" line it blasts the sand around and pushes my driftwood around..
not only that but if i take my hand off of it it will push itself out of the top of the tank and empty the 40 gallon sump onto my floor before i can shut it down.. usuially it happens to do this behind the tank which is very helpful in that "GODDAMNIT!!!" sort of way... however... i added a 2'x1/2" spraybar with 3/8" holes every 4 or so inches... my sand stays put even my plants are for the most part intact.. even the fish* can swim around without getting blasted
*pleco, 7 bichirs, 3 IR sharks, thinbar, paroon, 3 hi-fins, 2 pinktails and a random goldfish thats to big to be eaten put a bit of wear on the plants
.. sorry if this is not as clear.. even im having trouble reading it..
