Which is better?
- Thread starter caz2022
- Start date
tangs rule
Active Member
What are you trying to do? set up a sump or somthing? The answer might depend on your goal, so post your plan & describe your design. We'll try to help!
caz2022
Member
Its an old 55 gal that I converted into a sump/'fuge. Right now I have it set up to drain straight down flow from the left (sump with heaters and a skimmer) through a few baffles, through the refugium, and finally into the return pump area on the far right. Then back up and over to the left side of the DT to the return.
tangs rule
Active Member
Quote:
Originally Posted by caz2022 http:///forum/thread/386130/which-is-better#post_3389808
Its an old 55 gal that I converted into a sump/'fuge. Right now I have it set up to drain straight down flow from the left (sump with heaters and a skimmer) through a few baffles, through the refugium, and finally into the return pump area on the far right. Then back up and over to the left side of the DT to the return.
That sounds like a good design and should work well.. I too would set up the drain to run straight down.
Originally Posted by caz2022 http:///forum/thread/386130/which-is-better#post_3389808
Its an old 55 gal that I converted into a sump/'fuge. Right now I have it set up to drain straight down flow from the left (sump with heaters and a skimmer) through a few baffles, through the refugium, and finally into the return pump area on the far right. Then back up and over to the left side of the DT to the return.
That sounds like a good design and should work well.. I too would set up the drain to run straight down.
caz2022
Member
Quote:
Originally Posted by tangs rule http:///forum/thread/386130/which-is-better#post_3389837
That sounds like a good design and should work well.. I too would set up the drain to run straight down.
So you don't think I would be better served by shortening the head pressure with a shorter return line? The reason I'm asking is that Im going to convert an old 75 into the same design and I'm trying to decide which way to put it when its done.
Originally Posted by tangs rule http:///forum/thread/386130/which-is-better#post_3389837
That sounds like a good design and should work well.. I too would set up the drain to run straight down.
So you don't think I would be better served by shortening the head pressure with a shorter return line? The reason I'm asking is that Im going to convert an old 75 into the same design and I'm trying to decide which way to put it when its done.
tangs rule
Active Member
What matters most on a return line is total height - from the sump pump to the highest point the retrun line makes going back into the DT - -that = head height.. Just because the return line is angled some (and therefore longer) won't really affect flow, this assuming OF COURSE you don't have several elbows and zig-zag the return line up to the DT. If the total head height from the pump to the high point is say 5 feet - but it takes 6.5 feet of tube to get it there - you still have a 5 foot head, and can expect the same performance from your pump @ the 5' head, even though there's more line there.
I think this was the answer you wanted.
I think this was the answer you wanted.
caz2022
Member
Quote:
Originally Posted by tangs rule http:///forum/thread/386130/which-is-better#post_3390014
What matters most on a return line is total height - from the sump pump to the highest point the retrun line makes going back into the DT - -that = head height.. Just because the return line is angled some (and therefore longer) won't really affect flow, this assuming OF COURSE you don't have several elbows and zig-zag the return line up to the DT. If the total head height from the pump to the high point is say 5 feet - but it takes 6.5 feet of tube to get it there - you still have a 5 foot head, and can expect the same performance from your pump @ the 5' head, even though there's more line there.
I think this was the answer you wanted.
Yes, Thanks a ton. I was unclear about how to measure the head hight. I thought the length would be a factor. So I'll just build the new one the same way. In reality theres only one real 90 elbow, with how I have the return line hung its sweeping curves with just the one hard 90 at the very top.
Originally Posted by tangs rule http:///forum/thread/386130/which-is-better#post_3390014
What matters most on a return line is total height - from the sump pump to the highest point the retrun line makes going back into the DT - -that = head height.. Just because the return line is angled some (and therefore longer) won't really affect flow, this assuming OF COURSE you don't have several elbows and zig-zag the return line up to the DT. If the total head height from the pump to the high point is say 5 feet - but it takes 6.5 feet of tube to get it there - you still have a 5 foot head, and can expect the same performance from your pump @ the 5' head, even though there's more line there.
I think this was the answer you wanted.
Yes, Thanks a ton. I was unclear about how to measure the head hight. I thought the length would be a factor. So I'll just build the new one the same way. In reality theres only one real 90 elbow, with how I have the return line hung its sweeping curves with just the one hard 90 at the very top.