Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater & Reef - Getting Started
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 07-31-2002, 11:20 AM   #1
AA Team Emeritus
 
Join Date: May 2002
Location: Virginia
Posts: 2,256
Send a message via ICQ to fishfreek Send a message via AIM to fishfreek Send a message via MSN to fishfreek Send a message via Yahoo to fishfreek
Bulkhead fittings and Check valves

Ok. So now I gotta order me some bulkhead fittings and a check valve.

Im looking at www.marinedepot.com as the source and I have to ask.

Should I get
  • Standard Threaded Bulkhead Fitting (Threaded x Slip
    Double Threaded Bulkhead Fitting
    Double Slip Bulkhead Fitting

The picture looks the same so I dont know what the differences are. All I know is I need one that is 1" inside diamater.

I think I want a double threaded fitting but not sure.
__________________

__________________
Remember dont tap the glass, your fish will think you're an idiot -Anonymous mother

Check out our articles area. 30+ Aquatic articles for your enjoyment
Are you in or around the Shenandoah Valley area? If so click here to join our regional forum.
fishfreek is offline   Reply With Quote
Old 07-31-2002, 08:40 PM   #2
AA Team Emeritus
 
reefrunner69's Avatar
 
Join Date: May 2002
Location: Cedar Key, FL
Posts: 1,663
I prefer slip fittings, but there is not much room for error with slip. Also with slip you will not be able to take it apart to modify it, if the need arises, you'll have to cut it and patch it back together with couplers. The reason I prefer slip is because there is less restriction, the threads on both pices will reduce the actual ID of the fitting. I also find it easier to work with, but just realize if you mess it up, you may have to replace the bulkhead. If you are pumping enough water that the small amount of restriction isn't an issue, then you would do well with a 50-50. Only the plumbimng outside the sump needs to be water tight, so just use the slip side inside and don't glue the pvc or elbow in place, the threaded half can be used outside the sump with a male threraded fitting and some teflon tape..... Either way, I'd use the 2 X slip or the 50-50, not the 2 X threaded, there is no need for the second set of threads....
__________________

__________________
Kevin

Visit Nature Coast Photography
reefrunner69 is offline   Reply With Quote
Old 07-31-2002, 10:40 PM   #3
Aquarium Advice FINatic
 
Join Date: May 2002
Location: Western NY
Posts: 610
Send a message via ICQ to Bang Guy
I agree with Reefrunner completely. If you choose the 50/50 try to find the Teflow thread stuff. Not the tape (although that will work). It's the stuff in the small can just like the PVC solvent. That stuff works MUCH better than the Teflon tape.

About that check valve.... To each him own but set up your system so you don't have a flood if the check valve fails. More often than not Calcarious tube dwelling critters will enjoy the high flow around the check valve and make it the valve won't completely seal.

If you need instructions on how to prevent a back-siphon let us know.
__________________
If you wake up breathing CONGRATULATIONS!!! You get another chance to do it right.
Bang Guy is offline   Reply With Quote
Old 07-31-2002, 10:54 PM   #4
AA Team Emeritus
 
Join Date: May 2002
Location: Virginia
Posts: 2,256
Send a message via ICQ to fishfreek Send a message via AIM to fishfreek Send a message via MSN to fishfreek Send a message via Yahoo to fishfreek
I know that if I drill a very small hole just below the water line on the return pipes that if the pump goes off the water will back syhon down to the hole but then the air comming in the hole would prevent further backflow.
__________________
Remember dont tap the glass, your fish will think you're an idiot -Anonymous mother

Check out our articles area. 30+ Aquatic articles for your enjoyment
Are you in or around the Shenandoah Valley area? If so click here to join our regional forum.
fishfreek is offline   Reply With Quote
Old 08-01-2002, 12:45 AM   #5
member
 
Join Date: Jul 2002
Location: North Carolina
Posts: 360
i think you should drill 4 small holes below the water line --i would be afraid that one small hole would get clogged too easily--of course, this is just my opinion! best wishes..
__________________
CRaZeeeBiTcHisH is offline   Reply With Quote
Reply

Tags
val

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Check Valves for CO2 fish_4_all Freshwater & Brackish - Planted Tanks 2 06-24-2006 03:19 PM
Bulkhead fittings jim532 Freshwater & Brackish - General Discussion 2 04-07-2006 11:47 PM
Oceansmotions Valves mp3z24 Saltwater & Reef - Getting Started 5 12-19-2005 02:48 PM
Cheap Plumbing Parts (Bulkhead fittings). Where? ace1uno_00 General Hardware/Equipment Discussion 3 10-18-2005 09:03 AM
Ball Valves qhrisnd General Hardware/Equipment Discussion 13 09-16-2005 03:07 AM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 01:24 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.