|
09/19/2010, 09:33 PM | #301 |
Registered Member
Join Date: Nov 2006
Location: Sacramento,CA
Posts: 408
|
|
09/19/2010, 09:34 PM | #302 |
Registered Member
Join Date: Nov 2006
Location: Sacramento,CA
Posts: 408
|
|
09/19/2010, 09:40 PM | #303 |
Registered Member
Join Date: Jul 2010
Location: philly, pa
Posts: 208
|
the original idea was not the one i built but when i saw a pvc overflow years ago i knew i would build one. it only took about 2 years for me to actually do it though. i wish i have done it sooner. i dont think im ever gonna buy filters anymore. im just going to get water pumps.
|
09/20/2010, 06:02 AM | #304 |
Registered Member
Join Date: Aug 2009
Location: Northern VA
Posts: 4,618
|
Do you have a link to the original discussion? I really don't think that will work well (for the reasons mentioned above) and would like to read the original design thread.
|
11/09/2010, 09:07 AM | #305 |
Registered Member
Join Date: Jan 2009
Location: Charleston, SC
Posts: 971
|
Ok, a couple of questions before I try this over the weekend. Can both sides of the overflow (left and right) use the same measurements (lengths of pvc) or do they need to be different lengths as indicated in the original diagram. Ie, A=5", and N=7.75"?
The next question is, does lowering the cross sections where P and Q connect make the system flow better/faster or should I keep it at its original design level? Thanks for any input. |
11/09/2010, 05:54 PM | #306 |
Space is big.
Join Date: Feb 2007
Location: Maryland Eastern Shore
Posts: 3,226
|
I built one with both arms the same length. The original design interlaced the arms which is why they are different lengths.
Lowering the cross would help with flow as it causes the water to have more momentum going through the siphon. Just make B, F, I and M the same level and that the cross is above these by 1-2" (socket to socket distance should be enough) so you don't risk loosing siphon. RocketEngineer
__________________
-RocketEngineer "Knowledge is what you get when you read the directions, experience is what you get when you don't." - Unknown Current Tank Info: None Currently |
11/10/2010, 09:42 AM | #307 | |
Registered Member
Join Date: Jan 2009
Location: Charleston, SC
Posts: 971
|
Quote:
Thanks, I appreciate the info. That makes a lot more sense and easier to build. I'm going to work on it this weekend and see if I can get it up and running by Sunday (want to paint it). |
|
11/22/2010, 05:31 PM | #308 |
Registered Member
Join Date: Nov 2010
Location: Denver, CO
Posts: 277
|
Can you make this self priming if you placed the hose on the end of the check valve into the return pipe from the sump? Something simular to the Mame overflow from Japan.
I'm thinking about placing 2" of the check valve hose into the return pipe. This should cause the water flow from the pump to pull the air out of the PVC pip consistently. See attached picture (sorry for the crudeness of the picture). David
__________________
The road to enlightenment is different for each individual Current Tank Info: 10G MANTIS Tank |
12/16/2010, 01:57 PM | #309 |
Registered Member
Join Date: Jan 2009
Location: Charleston, SC
Posts: 971
|
Ok, its taken me longer to make this than I thought. I've had to work on it as time allowed. I'm hoping to finish it this weekend (we'll see ) This is what I have so far. I think I got carried away with the painting though.
Oh, which way do the check valves go? Arrow up or arrow down |
12/17/2010, 04:25 PM | #310 |
Registered Member
Join Date: Jan 2009
Location: Alabama
Posts: 204
|
Rhodes just blow through it...air will only go in one way. I have just tested my 1 sided version, i used 3/4" and for the down I used 1 1/4" , it won't keep up with a rio 800 running through 5 ft of flex hose.
My T is about 8" below level of my interior u tube. I don't know what gives this pump only good for 211GPH... By the way i haven't installed check valve yet either, just siphoned til water came out of my open upright. On the upside it did restart after 10 minutes of sitting, just slower than molasses. Last edited by 1st timer; 12/17/2010 at 04:28 PM. Reason: added info |
04/13/2011, 08:05 PM | #311 |
Registered Member
Join Date: Sep 2004
Location: Peoria AZ
Posts: 28
|
omg
|
04/14/2011, 10:10 AM | #312 | |
Registered Member
Join Date: Jan 2009
Location: Charleston, SC
Posts: 971
|
Quote:
|
|
11/10/2011, 02:24 PM | #313 |
Registered Member
Join Date: Feb 2011
Location: Las Vegas, NV
Posts: 202
|
Think I will give this a shot!
__________________
Mike Get It Right!!! Current Tank Info: Current Tank Info: 280G w/ 100G sump/ refugium, 3 x 400w MH, 4 x 65w fluorescent, Vertex skimmer, and RKL controller |
05/24/2012, 12:36 AM | #314 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
Some Great Information in this thread.
I thought I would bring it back up to see if there are any updates or newer designs? I am thinking of doing this for my tank and have a MAG 9.5 for a return. Any thoughts of a design and plumbing size to accomplish this? Thank You. |
05/24/2012, 10:07 PM | #315 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
WOW I guess the PVC Over Flow went the way of the Doe Doe Bird.
|
05/25/2012, 09:48 AM | #316 |
Registered Member
Join Date: Aug 2009
Location: Northern VA
Posts: 4,618
|
I think the big issue is not enough length for good surface skimming.
__________________
Click my home page for Thread Summaries Current Tank Info: 75 gallon lps and fish |
05/25/2012, 08:23 PM | #317 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
Double Post.
|
05/25/2012, 08:23 PM | #318 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
Will Two 1" PVC Over Flows work well with a Mag 9.5 Return Pump? This will be for my little 6 foot 125 gallon tank.
Oh and I decided to build two separate 1" PVC Over Flows instead of joining them into one drain line. I just figure if you are going to have two so you have an extra in case one clogs how can it help to have both going to the same drain if it clogs. |
05/26/2012, 01:30 PM | #319 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
BUMP Please for information?
As in is the 1" enough or should I go with 1.5" Thank You |
05/26/2012, 02:24 PM | #320 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
Ok I give lol.
I am heading back to exchange the 1" PVC for 1.5" PVC. |
05/31/2012, 07:42 AM | #321 |
Registered Member
Join Date: Aug 2009
Location: Northern VA
Posts: 4,618
|
IMHO you won't have enough surface skimming. With a 1.5 inch diameter pipe you have less than 5 inches of length for surface skimming.
__________________
Click my home page for Thread Summaries Current Tank Info: 75 gallon lps and fish |
05/31/2012, 10:08 AM | #322 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
I am going to use a 1 1/2 to 3" adapter at the top with a screen so I will have a round 3" for surface skimming.
But honestly is not the 3" better than nothing? |
05/31/2012, 10:13 AM | #323 |
Registered Member
Join Date: Aug 2009
Location: Northern VA
Posts: 4,618
|
They say more is better, but a lot of corner overflow probably have less than you will have. If you still plan to use 2 overflow then even better.
__________________
Click my home page for Thread Summaries Current Tank Info: 75 gallon lps and fish |
05/31/2012, 11:48 AM | #324 |
Registered Member
Join Date: Apr 2012
Location: San Antonio,TEXAS.Army Lodge 1105
Posts: 55
|
For right now it is 1 PVC Overflow made from 1 1/2 PVC and for the Overflow has a 1 1/2 to 3" adapter on top so the open top of the drain is 3". But really a bit less since I installed a cone type of grill. I forget what it is called but it was a bit smaller than standard PVC sizes and it was Green. But I made an adapter to be able to use it.
I will have to take a picture when I am able as I am sure others would be interested in this. |
11/10/2012, 10:22 AM | #325 |
Registered Member
Join Date: Jan 2001
Location: Tucson, AZ
Posts: 1,467
|
I have a question about the check valves. Can you not just put airline on them and feed it back into the overflow inlet all the way into the elbow between e&f ? Wouldn't the flow from the overflow pull out the air automatically?
__________________
Proud member of the JTCCB (jebao tuners club for cheap bastards) |
Thread Tools | |
|
|