SCWD return or a Surge??

Allamand · Joined: 16 Aug 2007 Posts: 14

What are the benfits and differance's here? I'm adding a sump to a tank and
can either go
with a SCWD on the return, which is an old Eheim 1060 (would this be enough
water flow for the SCWD)

Or, I was thing of getting the Wave power strip, use it for two PH's already
in the tank and then have the Eheim on the thrid outlit, so that it would
creat a Surge back into the tank...

Any thoughts

TIA

Archived from group: rec>aquaria>marine>reefs

Marc Levenson · Joined: 16 Aug 2007 Posts: 667

The SCWD will work between 50gph and 1400gph. Whatever enters the unit will
produce alternating currents, but you'll lose 20% of your flow. So if you pump
in 1000gph, you'll get 800gph. For $40, I think it is a great mechanism. You
can see pictures and more on my site, linked below.

Marc

"Allamand

> What are the benfits and differance's here? I'm adding a sump to a tank and
> can either go
> with a SCWD on the return, which is an old Eheim 1060 (would this be enough
> water flow for the SCWD)
>
> Or, I was thing of getting the Wave power strip, use it for two PH's already
> in the tank and then have the Eheim on the thrid outlit, so that it would
> creat a Surge back into the tank...
>
> Any thoughts
>
> TIA

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

Allamand · Joined: 16 Aug 2007 Posts: 14

Thanks Marc..

I seen the setup you have and was thinking either that way or the other.
I've seen then now for $30 on Ebay + s/h

So what type of flow output does one get from each side? I nderstand the 20%
loss,
but is it a full 800gph force output from each side? Also, what do you say
the rate of
alternating current is? I figure it would also be based on the GPH rate,
correct?

-steve

"Marc Levenson" wrote in message@swbell.net...
> The SCWD will work between 50gph and 1400gph. Whatever enters the unit
will
> produce alternating currents, but you'll lose 20% of your flow. So if you
pump
> in 1000gph, you'll get 800gph. For $40, I think it is a great mechanism.
You
> can see pictures and more on my site, linked below.
>
> Marc
>
>
> "Allamand
>
> > What are the benfits and differance's here? I'm adding a sump to a tank
and
> > can either go
> > with a SCWD on the return, which is an old Eheim 1060 (would this be
enough
> > water flow for the SCWD)
> >
> > Or, I was thing of getting the Wave power strip, use it for two PH's
already
> > in the tank and then have the Eheim on the thrid outlit, so that it
would
> > creat a Surge back into the tank...
> >
> > Any thoughts
> >
> > TIA
>
> --
> Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
> Business Page: http://www.sparklingfloorservice.com
> Marine Hobbyist: http://www.melevsreef.com
>
>

Marc Levenson · Joined: 16 Aug 2007 Posts: 667

Steve,

I don't have a way to measure the output, so it is purely guestimation of what
comes out each side. When I was testing it before it was connected to my
display, approximately .6 of a gallon came out of each side, and if I recall,
the switch was every 7 seconds. So with my Mag 5, I got 312gph. Keep in mind
that the diameter of your pipes will affect your output. Some people went with
3/4" flex from the unit to the tank, and complained. I used 1" thinwall, which
is 7/8" diameter I.D. to get the most flow and avoid huge pipes.

Some physics guru will know better, but I'd *guess* you get 312gph out of each
side, not 156gph from one side, and 156gph from the other. All the flow comes
out one outlet at a time.

Regarding switching times, the average seems to be about 8 seconds. There are a
number of threads on this subject on RC if you'd like to peruse them. Smile

Marc

"Allamand

> Thanks Marc..
>
> I seen the setup you have and was thinking either that way or the other.
> I've seen then now for $30 on Ebay + s/h
>
> So what type of flow output does one get from each side? I nderstand the 20%
> loss,
> but is it a full 800gph force output from each side? Also, what do you say
> the rate of
> alternating current is? I figure it would also be based on the GPH rate,
> correct?
>
> -steve
>
> "Marc Levenson" wrote in message
> @swbell.net...
> > The SCWD will work between 50gph and 1400gph. Whatever enters the unit
> will
> > produce alternating currents, but you'll lose 20% of your flow. So if you
> pump
> > in 1000gph, you'll get 800gph. For $40, I think it is a great mechanism.
> You
> > can see pictures and more on my site, linked below.
> >
> > Marc
> >
> >
> > "Allamand
> >
> > > What are the benfits and differance's here? I'm adding a sump to a tank
> and
> > > can either go
> > > with a SCWD on the return, which is an old Eheim 1060 (would this be
> enough
> > > water flow for the SCWD)
> > >
> > > Or, I was thing of getting the Wave power strip, use it for two PH's
> already
> > > in the tank and then have the Eheim on the thrid outlit, so that it
> would
> > > creat a Surge back into the tank...
> > >
> > > Any thoughts
> > >
> > > TIA
> >
> > --
> > Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
> > Business Page: http://www.sparklingfloorservice.com
> > Marine Hobbyist: http://www.melevsreef.com
> >
> >

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com

willis stanley · Joined: 16 Aug 2007 Posts: 10

In article , "Allamand"
cheqnet.net> says...
> Thanks Marc..
>
> I seen the setup you have and was thinking either that way or the other.
> I've seen then now for $30 on Ebay + s/h
>
> So what type of flow output does one get from each side? I nderstand the 20%
> loss,
> but is it a full 800gph force output from each side? Also, what do you say
> the rate of
> alternating current is? I figure it would also be based on the GPH rate,
> correct?
>
> -steve
>
> "Marc Levenson" wrote in message
> @swbell.net...
> > The SCWD will work between 50gph and 1400gph. Whatever enters the unit
> will
> > produce alternating currents, but you'll lose 20% of your flow. So if you
> pump
> > in 1000gph, you'll get 800gph. For $40, I think it is a great mechanism.
> You
> > can see pictures and more on my site, linked below.
> >
> > Marc
> >
> >
> > "Allamand
> >
> > > What are the benfits and differance's here? I'm adding a sump to a tank
> and
> > > can either go
> > > with a SCWD on the return, which is an old Eheim 1060 (would this be
> enough
> > > water flow for the SCWD)
> > >
> > > Or, I was thing of getting the Wave power strip, use it for two PH's
> already
> > > in the tank and then have the Eheim on the thrid outlit, so that it
> would
> > > creat a Surge back into the tank...
> > >
> > > Any thoughts
> > >
> > > TIA
> >
> > --
> > Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
> > Business Page: http://www.sparklingfloorservice.com
> > Marine Hobbyist: http://www.melevsreef.com

Check out Premium Aquatics' ebay auctions for a good deal (if they're
still running them) on the scwd and return tubes too. It's where I got
mine and they were quite helpful and quick.

Allamand · Joined: 16 Aug 2007 Posts: 14

Ya, they raised the price to $40 though, someone else still has them for $30
Smile

"willis stanley" wrote in message@news.starpower.net...
> In article , "Allamand"
> cheqnet.net> says...
> > Thanks Marc..
> >
> > I seen the setup you have and was thinking either that way or the other.
> > I've seen then now for $30 on Ebay + s/h
> >
> > So what type of flow output does one get from each side? I nderstand the
20%
> > loss,
> > but is it a full 800gph force output from each side? Also, what do you
say
> > the rate of
> > alternating current is? I figure it would also be based on the GPH rate,
> > correct?
> >
> > -steve
> >
> > "Marc Levenson" wrote in message
> > @swbell.net...
> > > The SCWD will work between 50gph and 1400gph. Whatever enters the
unit
> > will
> > > produce alternating currents, but you'll lose 20% of your flow. So if
you
> > pump
> > > in 1000gph, you'll get 800gph. For $40, I think it is a great
mechanism.
> > You
> > > can see pictures and more on my site, linked below.
> > >
> > > Marc
> > >
> > >
> > > "Allamand
> > >
> > > > What are the benfits and differance's here? I'm adding a sump to a
tank
> > and
> > > > can either go
> > > > with a SCWD on the return, which is an old Eheim 1060 (would this be
> > enough
> > > > water flow for the SCWD)
> > > >
> > > > Or, I was thing of getting the Wave power strip, use it for two PH's
> > already
> > > > in the tank and then have the Eheim on the thrid outlit, so that it
> > would
> > > > creat a Surge back into the tank...
> > > >
> > > > Any thoughts
> > > >
> > > > TIA
> > >
> > > --
> > > Personal Page:
http://www.sparklingfloorservice.com/oanda/index.html
> > > Business Page: http://www.sparklingfloorservice.com
> > > Marine Hobbyist: http://www.melevsreef.com
>
> Check out Premium Aquatics' ebay auctions for a good deal (if they're
> still running them) on the scwd and return tubes too. It's where I got
> mine and they were quite helpful and quick.

Reaper · Joined: 16 Aug 2007 Posts: 5

http://members.cox.net/reefmaiden/valve_diy2.html

I am trying Reef Maiden's variation of the Michaelson valve.

I am almost done.

The good thing about this device is no bubbles, noise, and it does not use
pump presure to run it like the SQWD unit.

Marc Levenson · Joined: 16 Aug 2007 Posts: 667

That is really cool. Smile

Marc

Reaper wrote:

> http://members.cox.net/reefmaiden/valve_diy2.html
>
> I am trying Reef Maiden's variation of the Michaelson valve.
>
> I am almost done.
>
> The good thing about this device is no bubbles, noise, and it does not use
> pump presure to run it like the SQWD unit.

--
Personal Page: http://www.sparklingfloorservice.com/oanda/index.html
Business Page: http://www.sparklingfloorservice.com
Marine Hobbyist: http://www.melevsreef.com