dannieboiz
Active member
I have two 1" Durso pipes in my OF box but it seems like on 1 pipe is getting all the flow at any given time, this forces the water into my sump way faster than what would like. Anyway to fix this?
how to get even drain from 2 pipes?
- Thread starter dannieboiz
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Natterjak
New member
Not sure if this is exactly the answer you're looking for, but here's one design someone came up with for dual pipes in an OF:
http://www.oceansmotions.com/forum/viewtopic.php?t=546
http://www.oceansmotions.com/forum/viewtopic.php?t=546
dannieboiz
Active member
Thanks Bonnie, his design is actually the opposite of my purpose.
He's trying to get all the flows into one pipe (due to noise)
I have no noise issues, but since mine is only 1" vs. the 1.5" and only 1 drain pipe seems to get all the flow I get this eruption from that single pipe bursing with bubbles.
BTW: I probably have over 1200gph running down a single 1" pipe. I'm using 2 Quiet One 3000 running in parallel as a return at the moment. That's 800gph each into one.
When i get my Dolphin 3k back this week from service I'm probably going to have a bigger issue cause that's a 3kgph pump.
He's trying to get all the flows into one pipe (due to noise)
I have no noise issues, but since mine is only 1" vs. the 1.5" and only 1 drain pipe seems to get all the flow I get this eruption from that single pipe bursing with bubbles.
BTW: I probably have over 1200gph running down a single 1" pipe. I'm using 2 Quiet One 3000 running in parallel as a return at the moment. That's 800gph each into one.
When i get my Dolphin 3k back this week from service I'm probably going to have a bigger issue cause that's a 3kgph pump.
dannieboiz
Active member
Are you planning to T them together @ some point or keep 2 drains into the sump? I think if you t them together on t he bottom to a large pipe, you'll have less of an issue but then you'll end up with a huge pipe running down the sump.
dannieboiz
Active member
have a hole in each pipe with a 1/4 air tube running down.
Like I said I have no problem noise, I'm trying to make my drain blow water out and not have a volcanic eruption effect.
OK, just re-read everything and I think I understand your issue.
What bookfish said, except I would use a gate valve rather than a ball valve for finer control. Restrict the opening in your drain so you're not sucking so much air. It will also help to add a repair coupling
to your drain line so you can vertically control where the drain line enters the sump. You want to shoot for right at the water level. I use a 45 degree elbow at the end to allow air to escape without gurgling.
What bookfish said, except I would use a gate valve rather than a ball valve for finer control. Restrict the opening in your drain so you're not sucking so much air. It will also help to add a repair coupling
to your drain line so you can vertically control where the drain line enters the sump. You want to shoot for right at the water level. I use a 45 degree elbow at the end to allow air to escape without gurgling.
<a href=showthread.php?s=&postid=9858408#post9858408 target=_blank>Originally posted</a> by juaninsac
OK, just re-read everything and I think I understand your issue.
What bookfish said, except I would use a gate valve rather than a ball valve for finer control. Restrict the opening in your drain so you're not sucking so much air. It will also help to add a repair coupling
to your drain line so you can vertically control where the drain line enters the sump. You want to shoot for right at the water level. I use a 45 degree elbow at the end to allow air to escape without gurgling.
I couldn't agree more. I just spent all day balancing flooded drain/overflow systems (I'll explain more if you're interested) and suffice it to say that if I could have made the fine adjustments on a gate valve instead of sticky ball valves, I would have been done before lunch.
One thing I forgot to mention is that if you do reduce your drain with a gate valve to quiet it it's absolutely necessary to create a secondary emergency drain or tee off the line just above the valve. All it takes is a snail in there, or a brief power outage (when the power comes back on the pump kicks in a bit more flow for the first few minutes), to cause a flood.
... had same issue, but w/ tremendous noise. What worked: make one drainpipe lower, actually submerged. Valve this line. Set other durso at the level you want the water in your sump (at the T of the durso). simply adjust the valve til water level sits at the T of the higher durso. Might not be perfectly balanced, but closer.
This is exactly how my overflow is too. The second drain has a tiny trickle of water most of the time. It carries a little extra when I stick my hands in the tank, turn a pump on, etc. Otherwise virtually silent. Much quieter than a Durso. The loudest noise in my tank is the air getting sucked into the venturi of my ER skimmer.
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