Silent and Failsafe Overflow System - Page 46

sean04 · 11/18/2009, 03:16 AM

I have a question regarding the sump with this design.

I am planning on making my sump with a skimmer section, a return section in the center, and a refugium. (Very similar to most). So all my pipes will drain into the skimmer section.

Are the bubble trap baffles needed since there should be no bubbles from the drain lines? (Do I have to worry about the bubbles created by the skimmer?)

jb61264 · 11/18/2009, 10:55 AM

Trying to figure out where I might be drawing air in my silent/failsafe setup. Its been running great for the last few months, but in the last couple weeks I notice a small surge of air bubbles every 30 seconds or so in my primary siphon...its nothing that I see as serious but considering I had perfect flow for so long, I'm wondering where this could be coming from...I don't have any salt creep in any of my connections so I can't find anywhere where air could be leaking in. Its strange because its not a constant draw of air but almost like a burp every 30 seconds or so...lasts for 2 seconds and then is gone until the next one.

Could there be air creeping in on my ball valve even though there is no evidence of salt creep?

stannn_ · 11/18/2009, 11:32 AM

bean,

would 2" pipes be better for a bigger tank or will the 1.5" pipes do? this is for a 1900+ gph return pump.

thanks.

jb61264 · 11/18/2009, 11:42 AM

Quote:

Originally Posted by stannn_

bean,

would 2" pipes be better for a bigger tank or will the 1.5" pipes do? this is for a 1900+ gph return pump.

thanks.

Not to answer for bean but 1.5" pipes will be more than sufficient for 1900 gph...I run a Mag 18 on my 75...at about 4' of head it is approximately 1400 gph. I run 1" pipe on my silent/failsafe overflow and it is more than ok to handle it

ozzmosis · 11/18/2009, 07:32 PM

Quote:

Originally Posted by jb61264

Not to answer for bean but 1.5" pipes will be more than sufficient for 1900 gph...I run a Mag 18 on my 75...at about 4' of head it is approximately 1400 gph. I run 1" pipe on my silent/failsafe overflow and it is more than ok to handle it

Agreed. If I'm not mistaken, until you get into the 3000+ GPH range, then 1.5" is more than enough. Remember, a line that is running on a full siphon will handle a lot more flow than an open channel standpipe of the same size.

stannn_ · 11/18/2009, 07:47 PM

ok. thanks jb and ozzmosis. much appreciated. 1.5" it is.

ozzmosis · 11/18/2009, 08:11 PM

Glad I could help!

madkeenreefer · 11/18/2009, 09:08 PM

Hi Bean,
I have finnished researching your thread ( I think every Q? has been asked lol) the search button is a great tool!
From what I have now come to belive is that the SFOS is not going to opperate with maximum performance/scilence with a basement positioned sumps because of the long drops and long lineal footages.
I was looking for these answers as I to have a basement sump which is a 5'drop 14' vertical run and another 4' drop away.
I read you suggested that the ball valves should be at the end points close to the sump but I never found a poster who posted their successes with this predicament.
would you have any advise for me before I comence.
Thanks in Advance
Madkeen reefer

golf nut · 11/18/2009, 11:27 PM

Quote:

Originally Posted by madkeenreefer

I was looking for these answers as I to have a basement sump which is a 5'drop 14' vertical run and another 4' drop away.

Madkeen reefer

is that 5 ft drop then 14ft horizontal then a 4 ft drop?

EnderG60 · 11/19/2009, 12:17 PM

Quote:

Originally Posted by BeanAnimal

The siphon tuning valve needs to be close to the end of the run. Keeping an "open channel" silent over that distance is another story... is the 40' through finished space or an unfinished basement?

basement is unfinished, so once its through the floor, and out of the living room its not a big deal....as long as I dont hear it through the floor that is

I was thinking of point a 1% or 2% slope to the pipes to help with the noise though.

madkeenreefer · 11/19/2009, 06:04 PM

Quote:

Originally Posted by golf nut

is that 5 ft drop then 14ft horizontal then a 4 ft drop?

Yes, Yes my mistake your exactly right that is what I ment. Thanks for that

scott26 · 11/19/2009, 07:59 PM

Does any one here on california's central coast have one of these so I can see it in action?

Wow... my first post.

11/18/2009, 10:55 AM	#1127
jb61264 Registered Member Join Date: Jan 2008 Location: Planet Earth Posts: 609	Trying to figure out where I might be drawing air in my silent/failsafe setup. Its been running great for the last few months, but in the last couple weeks I notice a small surge of air bubbles every 30 seconds or so in my primary siphon...its nothing that I see as serious but considering I had perfect flow for so long, I'm wondering where this could be coming from...I don't have any salt creep in any of my connections so I can't find anywhere where air could be leaking in. Its strange because its not a constant draw of air but almost like a burp every 30 seconds or so...lasts for 2 seconds and then is gone until the next one. Could there be air creeping in on my ball valve even though there is no evidence of salt creep? __________________ In the end (and the begining) we're all just stardust anyway... Click the red house for my build thread Current Tank Info: 75 gallon mixed reef/55 gallon sump/6x54W TEK T5HO/Red Sea Berlin Skimmer

11/18/2009, 08:11 PM	#1132
ozzmosis Registered Member Join Date: Dec 2005 Location: Tulsa, OK Posts: 136	Glad I could help! __________________ If you want time to spare, then travel by air. If you want more time yet, then travel by jet! I love the smell of Jet fuel burning in the morning! In this hobby, you have to be careful not to catch AIDS (Aquarium Induced Divorce Syndrome)! Current Tank Info: My tank is in the middle of a rebuild right now. I built this system over 2.5 years ago and just wasn't pleased with the outcome. So, this time around I'm improving things that I did poorly (aka "cheap") last time.

11/18/2009, 09:08 PM	#1133
madkeenreefer Registered Member Join Date: Sep 2008 Location: Quebec Posts: 30	Hi Bean, I have finnished researching your thread ( I think every Q? has been asked lol) the search button is a great tool! From what I have now come to belive is that the SFOS is not going to opperate with maximum performance/scilence with a basement positioned sumps because of the long drops and long lineal footages. I was looking for these answers as I to have a basement sump which is a 5'drop 14' vertical run and another 4' drop away. I read you suggested that the ball valves should be at the end points close to the sump but I never found a poster who posted their successes with this predicament. would you have any advise for me before I comence. Thanks in Advance Madkeen reefer __________________ lurking on reef sites just tryin to keep the balance Current Tank Info: 150gl reef

11/18/2009, 03:16 AM	#1126
sean04 Registered Member Join Date: Oct 2006 Location: Bay Area, CA Posts: 111	I have a question regarding the sump with this design. I am planning on making my sump with a skimmer section, a return section in the center, and a refugium. (Very similar to most). So all my pipes will drain into the skimmer section. Are the bubble trap baffles needed since there should be no bubbles from the drain lines? (Do I have to worry about the bubbles created by the skimmer?)

11/18/2009, 11:32 AM	#1128
stannn_ Registered Member Join Date: Nov 2009 Posts: 14	bean, would 2" pipes be better for a bigger tank or will the 1.5" pipes do? this is for a 1900+ gph return pump. thanks.

11/18/2009, 07:47 PM	#1131
stannn_ Registered Member Join Date: Nov 2009 Posts: 14	ok. thanks jb and ozzmosis. much appreciated. 1.5" it is.

11/19/2009, 07:59 PM	#1137
scott26 Registered Member Join Date: Nov 2009 Posts: 6	Does any one here on california's central coast have one of these so I can see it in action? Wow... my first post.