SCWD ?'s

[eric b 125]

i want to incorporate a scwd in my return plumbing. i have been able to hunt down a few 1" models, but everything i find requires flex tubing. a buddy of mine said they came out with a threaded scwd that will accept pvc. has anybody heard of or seen this?

 

[posiden]

It looks as though it does exist. I would hound the LFS to get it in, or when you order it from where ever. Make sure it is the internaly threaded.
http://www.3iqventures.com/oneinch.html

 

[cranberry]

Where does it say it's threaded? I'm missing that reference somewhere.

 

[posiden]

Originally Posted by Cranberry
http:///forum/post/3168652
Where does it say it's threaded? I'm missing that reference somewhere.
Scroll down there is a description. I copied this for you.
"With its 1" standard threaded inlet and outlets, the device can be hard plumbed with PVC fittings, or soft plumbed using barbed fittings"

 

[eric b 125]

my man

 

[cranberry]

Originally Posted by Posiden
http:///forum/post/3168659
Scroll down there is a description. I copied this for you.
"With its 1" standard threaded inlet and outlets, the device can be hard plumbed with PVC fittings, or soft plumbed using barbed fittings"
Sweet! I use them on most of my tanks. This is a plus! Thanks!

 

[eric b 125]

thats perfect! the 3/4" model could only handle up to 1400 gph which meant i would have to go w/ a mag 12, but this way i can hard plumb the most of my return plumbing which will make valves and unions easier to reach and i can go w/ a mag 18. PUMPED!!!

 

[posiden]

Originally Posted by Eric B 125
http:///forum/post/3168664
my man

Originally Posted by Cranberry
http:///forum/post/3168667
Sweet! I use them on most of my tanks. This is a plus! Thanks!
I haven't used or cared much for them due to the hose barb fittings they have. Now, I do believe I will be putting the 1" modle on my 75 build. I am glad Eric brought it up.

 

[calbert0]

what do these things do?

 

[mkroher]

Originally Posted by Eric B 125
http:///forum/post/3168670
thats perfect! the 3/4" model could only handle up to 1400 gph which meant i would have to go w/ a mag 12, but this way i can hard plumb the most of my return plumbing which will make valves and unions easier to reach and i can go w/ a mag 18. PUMPED!!!
just remember there will be head loss in the plumbing from the pump to the scwd. If you have the money to get a larger pump, I would do so.. you can always throttle it back with a ball valve.

 

[browniebuck]

being a newbie to sumps...what does this thing do? It looks like it diverts the water in different directions as it would come out of the sump so that you would be able to use it for 2 separate returns???
I am sure that I could be wrong...but is that what the SCWD does?

 

[posiden]

Originally Posted by calbert0
http:///forum/post/3168678
what do these things do?

Originally Posted by browniebuck
http:///forum/post/3168680
being a newbie to sumps...what does this thing do? It looks like it diverts the water in different directions as it would come out of the sump so that you would be able to use it for 2 separate returns???
I am sure that I could be wrong...but is that what the SCWD does?

You run the return or a closed loop through them. They alternate the output between sides. So in the tank there is flow from the right side for a while then it switches and puts flow on the left for a while. Then it repetes.

 

[cranberry]

It's a current switcher/alternator.
Water shoots out the right side, then the left side, then the right side, then the right side, then the right side, then the left side, then the right side, then the left side, then the right side, then the right side, then the right side, then the left side, then the left side, then the right side, then the right side, then the right side, then the left side....
All without electricity.

 

[posiden]

Originally Posted by Cranberry
http:///forum/post/3168687
It's a current switcher/alternator.
Water shoots out the right side, then the left side, then the right side, then the right side, then the right side, then the left side, then the right side, then the left side, then the right side, then the right side, then the right side, then the left side, then the left side, then the right side, then the right side, then the right side, then the left side....
All without electricity.

It seem your is hanging up a little. Maybe a good cleaning will help out.

 

[eric b 125]

from the research i've done, the squid USUALLY eats up about 60 gph

 

[cranberry]

Originally Posted by Posiden
http:///forum/post/3168690
It seem your is hanging up a little. Maybe a good cleaning will help out.

LOL.... dang it.
I don't worry about the reduction... I plan for it ahead of time with the appropriate sized pump that gives me the output I'm looking for. They have that nice little table on there somewhere.

 

[eric b 125]

right, i'm not so much worried about 60 gph loss. especially since even though the flow rate will be the same, the pressure will be doubled since it's going to one side of the tank at a time. this really has me going.