Dan's 150 Rebuild

[jgraz]

If you have two one inch drains, run one full siphon (underwater in the overflow about half way up), and the other dry just above the water line. They say the full siphons are very quiet and get great flow. aka Herbie The setup you have will eventually flood, just a matter of time.

How do you figure it will flood.

 

[ecam]

Dan. Fwiw. The 1 inch fitting can't handle the drains. It will overflow from the dt or sump at some point. The amount of damage will make a few adjustments needed seem cheap. U really need the 2 inch pipe to handle 2 overflows.

 

[Sobo's Reef]

Ok the idea of the 2 inch drain we discussed earlier won't work? With teeing it with a 2x2x1?

 

[kschweer]

You will be fine if you plumb both drains into a single 2" pipe. If I remember correctly by some math that is over my head the water from 2 1" pipes will fit into 1 1.5" pipe. However If I were you I would run them separately. Use the dursos that came with the tank and go 1" PVC off of the drain bulkheads back to the sump. I run dursos on both of my tanks without issue. As long as you're not trying to push more water through them than they are meant to handle they will be quiet. I believe a durso can move 800gph through a 1" bulkhead

 

[Sobo's Reef]

Awesome thank you Kevin! Got the tank up now! Starting the plumbing part now

 

[Mark...]

You will be fine if you plumb both drains into a single 2" pipe. If I remember correctly by some math that is over my head the water from 2 1" pipes will fit into 1 1.5" pipe. However If I were you I would run them separately. Use the dursos that came with the tank and go 1" PVC off of the drain bulkheads back to the sump. I run dursos on both of my tanks without issue. As long as you're not trying to push more water through them than they are meant to handle they will be quiet. I believe a durso can move 800gph through a 1" bulkhead

What happen if one of the one inch lines clog before the 2 inch? Wont his return pump flood the display? A full siphon moves a lot of water and an emergency lets you sleep...

 

[Sobo's Reef]

Ok well I have to run 2 separate drains now due to the stand being in the way. Is there any downside to having a drain dump in the return chamber?

 

[jgraz]

Microbubbles will be the biggest problem. There is no way to get the left overflow over to the right?

 

[Sobo's Reef]

There is but I have no where to really support the pipe going across... I may have figured it out, let me see

 

[Zippy69]

What happen if one of the one inch lines clog before the 2 inch? Wont his return pump flood the display? A full siphon moves a lot of water and an emergency lets you sleep...

How is this going to clog? Your tubes do not allow light to penetrate, so no algae. If the overflow is a point of concern...make a cover I did and all the algae died. The overflow has teeth that will allow particles to not get past to cause a clog. If we are thinking snail are there not 2-3 holes drilled in the sides to break a siphon from the main drain? So how can a snail block all 3 holes? Let alone the drain itself? So again I'm puzzled as to how this is going to clog?

 

[kschweer]

Dan's New 150RR

What happen if one of the one inch lines clog before the 2 inch? Wont his return pump flood the display? A full siphon moves a lot of water and an emergency lets you sleep...

There would need to be some serious neglect of the tank for the line to clog enough for that to happen. I won't say it can't happen because we all know anything can happen. Also there are 2 drains that would have to clog. If this were to happen it could happen with any drain setup. For example on the herbie set up the ball valve used to dial the siphon in is much more likely to clog than an open pipe because there is a spot for things to get stuck or cling to and a snail or something clogs the emergency it will flood. Highly unlikely but possible. Same goes with the setup dans using. In all reality there is no 100% safe drain. I would say a good majority of the people on here use a durso or other variation of it.

 

[Mark...]

There would need to be some serious neglect of the tank for the line to clog enough for that to happen. I won't say it can't happen because we all know anything can happen. Also there are 2 drains that would have to clog. If this were to happen it could happen with any drain setup. For example on the herbie set up the ball valve used to dial the siphon in is much more likely to clog than an open pipe because there is a spot for things to get stuck or cling to and a snail or something clogs the emergency it will flood. Highly unlikely but possible. Same goes with the setup dans using. In all reality there is no 100% safe drain. I would say a good majority of the people on here use a durso or other variation of it.

But wont any reduction in drain flow cause the DT to over flow from the return. Seems like a snail or anything reducing drainage and its flood city without a backup reserve.

 

[Mark...]

How is this going to clog? Your tubes do not allow light to penetrate, so no algae. If the overflow is a point of concern...make a cover I did and all the algae died. The overflow has teeth that will allow particles to not get past to cause a clog. If we are thinking snail are there not 2-3 holes drilled in the sides to break a siphon from the main drain? So how can a snail block all 3 holes? Let alone the drain itself? So again I'm puzzled as to how this is going to clog?

If the siphon breaks and water isn't going down to the sump, wont the return pump overload the display?

 

[kschweer]

Not necessarily. A correctly set up durso can move 800-900gph if not more. If you're pushing it to its limits a small obstruction would cause issues but if you're running a properly sized return 3-5x (some stretch this to as much as 10x) turnover of display you shouldn't have an issue. My tank for example is 57g and my return is moving about 300gph through the tank. There's still a lot of room for some obstruction. In dans case if the return is sized properly 1 of his 2 drains is sufficient to handle the water volume. You can think of the second essentially as an emergency.

 

[Mark...]

Not necessarily. A correctly set up durso can move 800-900gph if not more. If you're pushing it to its limits a small obstruction would cause issues but if you're running a properly sized return 3-5x (some stretch this to as much as 10x) turnover of display you shouldn't have an issue. My tank for example is 57g and my return is moving about 300gph through the tank. There's still a lot of room for some obstruction. In dans case if the return is sized properly 1 of his 2 drains is sufficient to handle the water volume. You can think of the second essentially as an emergency.

ok, that make sense...you just cant over do the flow and you have some room for clogs.

 

[Sobo's Reef]

Okay so the tank is almost filled. Hopefully the plumbing is good. Everything is glued in, just gotta wait for all my numbers to be right then move everything over and flip the switch and look for leaks.

I'm definitely doing my scape another day, I am so beat from today.

 

[Sobo's Reef]

Any idea as to why my drain on the right occasionally dumps out a ton of water and creates a wave? I have 2 45's and it dumping down on a slight angle. Its like every 3 seconds, major bubbles come out?

Also, the return lines at the top have what I thought was a siphon break but its spitting out water so hard and its so loud

kinda hard to tell

 

[Sobo's Reef]

I know why its creating a wave. The right overflow box water level keeps going up and down every few seconds, above and then just below the siphon break

 

[redfishbluefish]

I thought you were setting up a Herbie?

Anyway, the siphon action going on with right side is likely from the little hole in the top being clogged of the height of the durso not set right. Check the hole, and if that is not it, raise or lower the durso to adjust the siphon action.


EDIT TO ADD: Just saw your other set of pictures above....that in not a durso??? I'm lost....I don't know what you have.

 

[Sobo's Reef]

I was originally going to then decided against it bc I had little to no experience with it and no one to physically walk me thru it.

The standpipes don't move up and down, they just cut to length and stuck on there. I know what you mean though, my old standpipe did that. These ones don't however :/