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Unread 01/18/2005, 12:45 AM   #101
moeandicy
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I tried it

I built mine and spread it out so that the inputs are on each side of the tank. The problem though is that it acts like it flushes and dumps about 3 gallons into the sump in seconds and then the system looses syphon and stops. Any suggestions?

Travis


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Unread 01/18/2005, 12:52 AM   #102
tboned
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picture to see what you did


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Unread 01/18/2005, 01:17 AM   #103
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if you read i belive dursos website he tells you how to fix that. I think it was a couple of things that can cuase it the one I rem was if your drain is to deep in your sump. It should be just below the surface of the water.


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Unread 01/18/2005, 01:34 AM   #104
moeandicy
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My drain is actually above the water. Should be an easy fix to take care of that. I have it plumbed with 1.25 pvc with a 90 degree elbow about 6 inches above the water line. I can simply put a piece on that takes it just below the water line like was suggested. As for pictures it is exactly as the original diagram on the initial posting for this thread. It is just spread out over the back of the tank instead of folded. I have one intake on one side of the tank and one on the other.


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Unread 01/18/2005, 08:29 AM   #105
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well that would not bethe cause then I suggest you check out dursos site. or do a search for "surgeing standpipe overflow"


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Unread 01/18/2005, 07:35 PM   #106
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It sounds like you need something to break the siphon lower down the pipe so it doesn't suck air into the part that matters. Maybe a open pipe sticking up right before the final plunge?


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Unread 01/18/2005, 08:17 PM   #107
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If you look at my pic for the idea there is an open 3/4 in the t at the end. This can be capped then vented with an air valve.


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Unread 01/19/2005, 12:54 AM   #108
moeandicy
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fixed it I think

I think I got it fixed. I drill two 3/32" holes in the cap and put the drain into the sump about an inch or so. Hasn't "flushed" on me yet and appears to be stable. I'll let you know in the morning. I'm still limited in flow to about 180 gph because of the pump I'm using. Plan on upgrading sometime very soon. I'm a little concerned about the amount of water volumn that this can support because I'd like to get about 700 gph out of this. Does anyone have any info on this?

thanks


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Unread 01/19/2005, 01:18 AM   #109
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700 gph sounds like a lot to ask from this. Maybe bigger pipe or two of them?


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Unread 01/19/2005, 01:36 AM   #110
moeandicy
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Tboned you mentioned a ball valve in one of your earlier posts. Where exactly did you put this and where did you get them?


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Unread 01/19/2005, 01:40 AM   #111
tboned
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my original design handled a cap-1800 with no problems

the cap was 3' under the tank pumping back in the tank with 3/4" pvc


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Unread 01/19/2005, 01:43 AM   #112
tboned
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Quote:
Originally posted by moeandicy
Tboned you mentioned a ball valve in one of your earlier posts. Where exactly did you put this and where did you get them?

lowes

and I put one on the overflow and one on the return

the overflow one was so that I could pime the siphon with no problem and so that I could shut it off in mid overflow so that I could clean the stuff without fear of any water driping all over the place

the one on the return was to control the flow into the tank just incase my pump was to powerful for the overflow


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Unread 01/19/2005, 11:54 AM   #113
moeandicy
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It's still working with no problems. Hasn't lost syphon once since I drilled the holes in the cap. It's VERY VERY quiet too.


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Unread 01/19/2005, 12:16 PM   #114
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what kind of flow you getting?


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Unread 01/19/2005, 01:02 PM   #115
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tboned;

144 replies and 3000 views.

pretty darn good ;-)

Mine is still working GREAT!! I'm thinking about going with a full sump though instead of like I have.

Thanks again
Rockker


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Unread 01/19/2005, 01:08 PM   #116
moeandicy
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well my pump is totally inadequate for the job but I'm getting about 180 gph. that's all my little pump will handle. I'm planning on getting a quiet one 4000 later this week in the hopes of getting somewhere around 700 gph.


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Unread 01/19/2005, 01:11 PM   #117
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So if I use 1 1/4" PVC I should get between 1500-1800 gph, with a double setup, correct? Anyone?


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Unread 01/19/2005, 01:24 PM   #118
moeandicy
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One other benefit that I've found is that it's really easy to tell when you need to add water due to evaporation. Prior to this I had to just guess. Now the water level in the tank remains constant and only the volumn of water in the sump fluctuates. I just made a mark on the outside of my sump (low water mark). When the water gets down that low it's time to add water. Much better for dummies like me


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Unread 01/19/2005, 01:24 PM   #119
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I guess the true test will be when I get the new pump.


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Unread 01/19/2005, 11:58 PM   #120
tboned
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Quote:
Originally posted by Freed
So if I use 1 1/4" PVC I should get between 1500-1800 gph, with a double setup, correct? Anyone?

should


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Unread 01/23/2005, 03:05 AM   #121
moeandicy
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OK. New pump output at a 4' head is roughly 1100 gph. This overflow built as outlined above cannot handle it. It is overwhelmed in seconds. I am going to have to restrict the pump output or somehow add at least a third overflow if not a fourth. I'm getting a ball valve tomorrow to restrict the flow and see what happens from there.


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Unread 01/23/2005, 03:06 AM   #122
moeandicy
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I may goto a 1.25-1.5" setup instead. Hopefully that will increase the max flow capacity. Does anyone know of a three overflow unit???


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Unread 01/23/2005, 03:16 AM   #123
moeandicy
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I guess I should mention that the pump I'm using is a Lifegard Quietone 5000. Maybe a little much for what I need but shouldn't be too far off.


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Unread 01/23/2005, 04:10 PM   #124
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Im confused about how you shoud set a sump up. I have a 55g and I would like to turn a old 45g into a sump. Could this be done using only half of the 45g so the sumps only 25g or 30g.


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Unread 01/23/2005, 04:18 PM   #125
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You can use it as a sump/refugium. The more volume the better.


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