Please help? I need a very Quiet Pump for my Closed loop SPS and LPS. Any suggestions

[Scooterman]

Thought that was a 3/4" to the inlet to the QO3000? If so then use the one to connect to the other 1 1/2" !
I may need a complete shot of the entire back because I thought the was 3/4" to the QO3000?

 

[kevinpo]

It is not possible to reduce the pump intake from 1.5" or 2" to 3/4" without causing cavitation of the pump and shortening its life. You can reduce the output side without problems. On some models you can go from 2" to 1.5" with just a reduction in pump output GPH. Be sure to contact the MFG before modifying the suction side to make sure the warranty will be honored.

HTH,
Kevin

 

[Scooterman]

Kevin with the diagram I made she would have a 1 1/2" bh & a 1" bh adapted to 2" into the pump suction, they say (manufacturer) it can be reduced to 1 1/2" but the way I have it, It would actually be 2" going in.

 

[kevinpo]

Hi Scooty,
Sorry I didn't look at the drawing. I have run the Dart on a CL with a reducer from 2' - 1.5' and it worked fine. So you could just re-drill the original hole to accommodate a 1.5" bulkhead or go with the drawing .

Regards,
Kevin

 

[NanoReefer411]

Hi. The quiet One 3,000 is my return pump from my sump. That is the 3/4in bulkhead. Now to Quiet that pump down, would I need to make the hole 1 in return going into the aquarium for that?
I have 1 1in bulkhead for my closed loop. Would it be easier to just drill another 1 in bulkhead hole beside the other bulkhead? I have the drill for it, and I also have the 1 in bulkhead. Then I would need to bring them together somehow to total the 2 in going into the pump. Here is another shot again of my mess I made out of my tank.

I would just redo the 1 in suction that I had reduced to 3/4 in. I would make it 1 in. I would cut everything off and start over. PVC is not that expensive. I have the extra 1 in bulkhead as well. Also, I would place a 2x4 or something behind the tank to sit the pump on. Would I need any vinyl tubing? Someone on another website, you can probably guess what one but I am not sure if I am supposed to say, told me to be careful because the pvc would vibrate and cause a crack in my glass aquarium. So what should I do about that?

 

[NanoReefer411]

oh ya, don't worry the Quiet One 5000 is sold and it's not hanging off my tank like that. I took it down after I took this picture. I just wanted to show you all what it looked like. That's why it was also crooked. I just wanted to do it really quick. I will try to make my next plumbing job a little less sloppy. I was just trying to get this thing up and running. So all I am asking for for Christmas is, get this tank up and running. =) Do I need to redo my plumbing for the return as well? It looks like I need to to reduce noise and help the pump last longer. Or else, buy a different pump again. OYE MADRE! Let me know. Thank you all.

 

[Scooterman]

How thick is the glass? I have PVC from my sump to the pump but the pump is on a closed cell foam pad & I don't think it vibrates enough to crack it, I located the hole high & center. Now on your tank I didn't know it was glass verses acrylic, I would limit the hole sizes for sure, can you show us a pic of the entire back so we can see all the holes? Did you get that pump yet or your still deciding?

 

[Scooterman]

Well I found out the glass on this tank is 1/4" thick! I have to post this a get more opinions on drilling more holes in this tank! I certainly would not make bigger holes, what is your thought on this, please reply!

 

[NanoReefer411]

Well this is not good news. I thought everyone knew it was a 40 gallon glass tank. I'm sorry. Please everyone help. I can drill another 1 in hole for a bulkhead in the center off to the right. Please let me know. I hope I didn't make a mistake. Also, am I going to need some Vinyl tubing now instead of just hard pvc plumbing? Thank you.

 

[NanoReefer411]

Hi everyone,
Should I start a different thread to get more idea's from people? Here is what Chris from Reeflo pumps said, "you shouldn't need more than 1000 gph for a 40 gal tank...you do not have drill another hole...just use 1.5" pipe where you can..that's all...the size of the opening in your heart is not nearly as important as the wideness of your arteries" So what do you guys think? Last time I reduced the intake size of a pump, it made a lot of noise as you all know. I'd like to know if I should drill another hole? Or go with what Chris says? Thank you.

 

[Scooterman]

One thing I think If Chris says it will work then it should be ok, this is a better pump than what you had so It should be quieter in the first place. I would do as he said & bump up the PVC where you can, make it as big as you can, then try it out.

 

[NanoReefer411]

with all my 90 degree elbows and t's won't it significantly lessen the gph? I just want to make sure I have enough turn over in the tank. I also want to make sure I plumb it, so it is the quietest it can be period. I'm really worried about noise levels. Let me know. Thank you everyone! I'd appreciate everyone's help as well. Thank you Scooterman.

 

[Scooterman]

When you mount the 2x4 try to mount it so all the 90's are as far away as it can be from the pump, make the PVC as big as you can & you should be ok. The best thing to do is get it running with regular water let it runs a few days or a week even until you iron out the kinks! It takes time to really get it right, you learn by doing. Set the pump on closed cell foam padding, like the thin mats used for camping, the sleeping pads, I got one of these at Wat-mart for like $8, I put my tank on it & I double stacked it under my main pump. This pump will be way quieter just wait until you hear it.

http://www.reeffrontiers.com/forums/attachment.php?attachmentid=14144&d=1152982623

look at mine, it is on 2" PVC the 90 is right on the inlet & it is super quite, can't hear it! Now my big return the 90's are farther away but it is way louder!