New wavemaker- awesome!!!

[ronbis]

I'm setting up a 75 soon. Can you guys who have similar setups tell me what you think? I'm planning to drill 4 holes for outputs, 2 on each size and going 3/4" from the oceansmotions to the tank with loc-line nozzles in the tank. For the input I'm thinking of a single 1" bulkhead with strainer midway up on the back wall with 1" PVC to the pump on the floor (could possibly make a stand to bring the pump up to bottom of tank level). For the pump I'm considering the Panworld 50PXX. I'm thinking I want the 1 & 2, 2 & 3, 3 & 4, etc... oceansmotions valve.

I'm planning on having softies, clams, lps, and fish. Will this setup work? I'd really appreciate any input from those with experience. I haven't ordered anything yet, so I'm open to suggestions on equipment. Thanks.

 

[seeker]

Ronbus,

I would go with 1" rather than 3/4". I used 1" up to 3/4" loc-line and I feel pretty sure I get a lot more flow from using the 1". I would also increase the input side. (hey if you're drillen it now, ya can't get too big) I would sugest 1-1/2" to 2" drain bulkhead.

Depending on how you plumb the outputs... I used the 8 way and took 4 ports to each side of the tank (kinda). Ports 1-5 are in the front sides, ports 2-6 are in the back sides, ports 3-7 are revolutions that are 3/4" 180 Deg and they are 1/3 from each side of the tank and finally the 4-8 ports are a spray bar and a 3/4" output (soon to be another revolution).

I went with the 1-5,2-6,3-7 so that most of the time the water is pushing into each other and creating the most random I could get.

Seeker

 

[ronbis]

Seeker,

I was thinking about a larger drain bulkhead, do you know where I could get strainers that large? Does it make sense to go with a 3/4" loc-line if you're using 1" pipe? I mean aren't you limited by the 3/4" diameter? I fell asleep in fluids class, that's why I'm not a mechanical engineer I've never seen 1" loc-line either. Wonder if anyone makes it.

Yeah, I was thinking about pluming it so that 1 and 2 are on the outsides and 3 and 4 are on the inside. I'm definitely happy to see a good alternative for wavemaking!

Do you think the pump I'm looking at would give enough flow going through two outlets at once?

 

[David P]

Ive never seen 1" locline unfortunately. I believe it takes 3) 3/4" lines to handle the same volume as a 1.5". So Im thinking of buying 2 1.5" plugs and drilling and tapping 3) 3/4 holes for loc line to go into the bottom two returns. We use loc line at my work for cooling tools on some of the CNC machines, Ive seen different colors laying around so they may make larger than we may find at the LFS for industrial applications. Now that I think of it, I think Ill do a little research...

 

[David P]

Ive never seen 1" locline unfortunately. I believe it takes 3) 3/4" lines to handle the same volume as a 1.5". So Im thinking of buying 2 1.5" plugs and drilling and tapping 3) 3/4 holes for loc line to go into the bottom two returns. We use loc line at my work for cooling tools on some of the CNC machines, Ive seen different colors laying around so they may make larger than we may find at the LFS for industrial applications. Now that I think of it, I think Ill do a little research...

 

[Gujustud]

http://www.locline.com

3/4" is the biggest.

 

[AcroSteve]

I have been looking all over for street 45's like these! Where did you get them?

Paul,

I love this thing.

Here a few of my pics

Don

 

[AcroSteve]

First I spoke with one of the engineers at work, I have heard many people say that on a closed loop, the gravity on the suction side of the pump will equalize the head pressure the pump must push against. That is incorrect, true for every28"(?) water will have 1psi of pressure, but you must consider that your pump is pushing water up faster than what gravity will it down. So you must still consider how high the pump will push.

Please disregard any friction/pipe loss for this question.

Situation;
You are running a closed loop and the pump is 6' below the suction bulkhead, and the returns are 1' above the suction bulkhead, the total head seen at the pump is 1'.

Is this correct? Or is the head seen at the pump7'?

 

[seeker]

Ronbis,

There's much less friction loss in the larger diameter pipe so I think you end up with more pressure at the 3/4" outlet thus more volume out. I left one of the ends at 1" for a while and it was too much flow, I restricted it down to 3/4".

Marine Depot has threaded strainers up to 2", just be sure to get threads on the bulkhead.

Seeker

 

[ReeferMac]

You can get a variety of threaded and slip bulkhead strainers at aquatic ecosystems. I got several from there, and was very happy.

- Mac

 

[Travis]

I may be wrong but my calculations say that it would take 4 3/4" pipes to allow the same volume of water to pass through as a 1.5" pipe. Also, IMO, it is kind of self-defeating to reduce outlet sizes. The smaller the outlet the less the water flow is spread out. We are trying to get high flows with low velocity due to the wide spread not high velocities with very little spread.

 

[Travis]

Please disregard any friction/pipe loss for this question.

Situation;

You are running a closed loop and the pump is 6' below the suction bulkhead, and the returns are 1' above the suction bulkhead, the total head seen at the pump is 1'.

Is this correct? Or is the head seen at the pump7'?

From what I've always heard about closed loops it would only be 1' of vertical head.


BTW, Can anyone help me figure out why I can't highlight an entire quote and then click the quote button and paste it? When I highlight an entire post and then paste it in the quote pop-up window it will only paste from the beginning until the poster pressed return. Also, my quotes never say who is being quoted.

 

[ReeferMac]

BTW, Can anyone help me figure out why I can't highlight an entire quote and then click the quote button and paste it?

I believe there is a character limit to the script that works that little pop-up thinggy.. I've had the same problem. I've learned to copy what I want to quote, press the quote button and type a single space, click enter... and then paste what I want to quote over top of the 'space' I put in. Works {shrug}...

Also, my quotes never say who is being quoted.

Ya gotta use the "quote" button in the upper right hand of each post, in order to have it insert that stuff for you.

- Mac

 

[Travis]

I believe there is a character limit to the script that works that little pop-up thinggy.. I've had the same problem. I've learned to copy what I want to quote, press the quote button and type a single space, click enter... and then paste what I want to quote over top of the 'space' I put in. Works {shrug}...



Ya gotta use the "quote" button in the upper right hand of each post, in order to have it insert that stuff for you.

- Mac

Hey that works pretty slick. Thanks Mac.

 

[David P]

Please disregard any friction/pipe loss for this question.

Situation;
You are running a closed loop and the pump is 6' below the suction bulkhead, and the returns are 1' above the suction bulkhead, the total head seen at the pump is 1'.

Is this correct? Or is the head seen at the pump7'?

7 feet

 

[srit1]

I'd say 1 foot since the pressure of the water coming down balance that of it going up... cept for 1 foot

 

[David P]

but it doesnt. True, you do have gravity helping the water go down, but you also have the suction from the pump pulling the water down. And dont forget your pushing water against the same gravity going up.

 

[ronbis]

I may be wrong but my calculations say that it would take 4 3/4" pipes to allow the same volume of water to pass through as a 1.5" pipe.

I believe the 3/4" pipes would simply have a greater velocity than the 1.5" To allow the same volume to flow that is...

I want to be able to direct the flow coming out of my bulkheads, so it looks like I have to reduce to 3/4" in order to use loc-line. Are there options for flow direction that I'm missing?

So my new setup will be either 1 1/2" or 2" bulkhead to same sized PVC to pump (panworld 50PXX @ 1110 gph), 1" to oceansmotions, 1" to inlet bulkheads, 3/4" loc-line.

Any idea how much flow I can expect to see from two nozzles at the same time?

Thanks for all the input. Can't wait to start ordering parts!


Go Avalanche!!!

 

[DerekW]

but it doesnt. True, you do have gravity helping the water go down, but you also have the suction from the pump pulling the water down. And dont forget your pushing water against the same gravity going up.

I wqs under the impression that this was true, the only head loss in a closed loop is due to frictional loss of the piping, because of the siphon and gravity.

 

[David P]

thats what I heard but didnt believe it so I checked with the engineers who deal with fluid dynamics all the time at work...