Power Heads

How many power heads do you use in the tank and do you have them on 24/7?
Check off as many that apply to your tank.
OK I have 4 power heads in my 80 gallon.

One with little GPH on 24/7 behind the LR pushing across the back of the tank.

One Aqua ball on 24/7 pointing down towards my long hair polyps.

One rio 800 pointed upwards and across front of tank on 12 hours from 9 am to 9 pm. to break the surface water which will let gases out of the tank.

One rio 800 on back right corner two thirds from bottom of tank and pushing straight forwards on from 8 am to 10 pm.

I am trying to mimic the wave flow of the ocean as it is calmer during the night and seems to be having a great effect on the corals.

 

Who evers votes please post up where you have your PH's located and size of tank and type of PH's. Thanks

 

1400 GPH "Dolphin" return pump running thru SCWD seems to move my water around plenty...no additional PH's...

Om
8)

 

Ive got a RIO 1700 on the side blowing down across the front and a maxi 1200 other side blowning from the back to front. and a maxi micro jet in the fuge

 

[quote author=omard link=board=General;num=1082310688;start=0#2 date=04/18/04 at 11:52:12]1400 GPH "Dolphin" return pump running thru SCWD seems to move my water around plenty...no additional PH's...

Om
8)[/quote]
Scott could you post a photo or a drawing of this? and the type of hose or PVC tytpt size etc...

 

Has anyone used this power head?
http://www.globeaqua.com/swrpump.html

 

I have one Hagen 402 blowing straight across the front in my 75 gallon, and thats it. I think it is 200 GPH. I also have my return pump which is a Mag 12.

 

Mr. "Nautilus"...

Here is installation info & pic I found once upon time on web for SCWD...(am no good at drawing... )

Only difference in my setup, SCWD hooked directly to return pump (in sump) then the two return lines (from SCWD) go to the two overflow returns in the AG 120 setup...

​

Installation:
There are many ways to install your new SCWD. The following instructions reflect the preferred method of installation. In addition, even though your new SCWD is not overly sensitive to the normal particulate and debris found in aquarium systems, to ensure long life, water must be filtered prior to entering the SCWD.  

Measure and cut two pieces of 3/4" (ID) hose for the two outlets. For best results, it is strongly recommended that both outlet hoses are cut equal in length, leaving the SCWD centered between the two outlets.
Measure and cut one piece of 3/4" (ID) hose that will be connected to the water pump, canister filter, or powerhead outlet at one end and the SCWD inlet on the other. It is recommended that an inline valve be installed between the water pump and the SCWD to allow for flow adjustment, and for ease of removal and cleaning of the outlet hoses if required.

Install each hose on each outlet of the SCWD by applying firm, but even pressure, until each hose is fully seated. It is recommended at this point that you install worm clamps for added protection against leaks and the possibility of the hose coming loose. Do not over-tighten the worm clamps.
Install the inlet hose using the same operations noted in Step 3, paying close attention not to exert too much force on the nipple.

Once all hoses are mounted and clamped, you are now ready to install the outlet elbows and nozzles on each end of the outlet hoses. By combining rigid elbows to form an angle over the aquarium side you can adjust the position of the outlet nozzles to give you the desired current affect. The configuration of the elbow is such that it will hang over the back of the tank on both sides like an upside down "U". At this time, you should support the SCWD by mounting or hanging the SCWD from the back of your tank using bendable wire.

Connect the inlet hose with the inline valve to your pump, canister filter, or powerhead outlet. Be sure to use a worm clamp to avoid any potential leakage.
 

Operation:

Make certain the SCWD is securely installed before operation. Open the in-line valve between the water pump and your SCWD so that it is approximately half open. This is as precautionary step to prevent a full force surge to the SCWD when using some of higher volume and pressure pumps.
Apply power to the water pump. Verify water outlets are expelling water and that there are no leaks at any of the connections. Verify that the device is switching water flow between the two outlets. Now, open the in-line valve to your desired flow.
Remember that switching speed and current duration are dependent on the volume of water flowing through the SCWD. Higher volume pumps will naturally cause a quicker switching response than lower volume pumps. By adjusting your inline valve you will be able to regulate both the amount of flow and the switching speed.

Troubleshooting

Symptom: Switching speed too slow.
Remedy: Check pump for proper flow/pressure rating.

Symptom: Switching speed inconsistent.
Remedy: Check hoses for algae and slime obstructions.

Symptom: SCWD is noisy or stops abruptly, stops and starts sporadically. Remedy: Foreign debris is lodged in switching mechanism. Flush out unit to dislodge debris. Verify pre-filter is installed and is not clogged or restricting flow.

OmarD


PS:

Anyone interested in getting...here is best buy on web for a SCWD...

Inreef.com

The SCWD (pronounced "squid&quot is a revolutionary device designed to provide alternating currents without the use of electricty. The SCWD mounts inline with 3/4" tubing, the two ports alternate the output, the bottom port is the input. A great alternative to expensive electronic ball valves. The SCWD will run on any pump with a minimum output of 50 GPH and a maximum output of 1400. The switching speed and current duration is dependent on the volume of water flowing through the SCWD. You can control the duration by controlling the flow going through the SCWD. Can be submersed for use with large power heads or used externally. A great product with a full one year warranty.
Details

 
Quantity 7 item(s) available
Weight 1.00 lbs
Price: $ 26.00  

 

Thanks. Scott.

those that don't use a power head please tell us why!

 

I HAVE 2 PH IN MY 75GAL.  A MAXIJET 1200 ON THE LEFTSIDE BLOWING DOWN AND ACROSS THE TANK AND A AQUACLEAR 402 ON THE RIGHT SIDE OF THE TANK BLOWING DIAGONALLY ACROSS THE TANK