need pump recomendation

[coralcruze]

I'm looking into the hy-drive pump model 2100... are these quiet? do they increase heat in the tank? anyone have any expierience with these?

http://www.fosterandsmithaquatics.com/product/prod_display.cfm?c=3578+4587+20396&pcatid=20396

 

[TripleT]

I'm looking into the hy-drive pump model 2100... are these quiet? do they increase heat in the tank? anyone have any expierience with these?

http://www.fosterandsmithaquatics.com/product/prod_display.cfm?c=3578+4587+20396&pcatid=20396

No experience here... but what are you using it for? You sure you need that much flow?

 

[coralcruze]

I need about 500 gph at about 5 foot head... I also need a super quiet pump that will not increase water temp in tank. Lasty I need it to be fairly small say 8" x 5" x 5" cant fit anything bigger than that. I need two pumps, one for a closed loop system and one for main circ. in a custom tank. any suggestions?

 

[mr.wilson]

I've never heard of that pump, but I would stay away from stainless steel as calcium bonds to it, throwing it of balance and eventually seizing. The description is vague, but it looks like a drive similar to that of Grundfos which have always been problematic in saltwater applications.

I would go with a Laguna (Askoll) 1500 Max-Flow. http://www.pondpals.com/pond_pumps/powerjet-pumps.html
It's a little too powerful for your needs, but you can tee it off to run a UV, media reactors, calcium reactor etc.

They are quiet, readily available, reliable, reef-safe, low heat transfer, minimal vibration, 13.5' head pressure, energy efficient (100 watts), and they don't spin backwards on start-up like older generation submersibles.

ATB of Austria sells the same pump with an upgraded base plate and a 3/4" reducer union bonded to the effluent port for another $75. http://www.atbskimmers.com/products/inventory.php?category=Circulation Pumps Take a look at the 3600 & 4200 ATB Flowmaster pumps for the closed loop. They have a CNC machined custom volute on a Laguna/Askoll motor. A little pricey, but solid, quiet and reliable.

 

[ReefTeacher]

I just bought a new return pump. I decided on a Tunze silence. Boy does it live up to its name! My tank is in my bedroom so quiet is very important to me. One of the best parts is there is an adjustment wheel on the front, so there is no need to buy a separate ball valve to regulate flow.

 

[coralcruze]

I just bought a new return pump. I decided on a Tunze silence. Boy does it live up to its name! My tank is in my bedroom so quiet is very important to me. One of the best parts is there is an adjustment wheel on the front, so there is no need to buy a separate ball valve to regulate flow.

How big is your tank and whats its flow requirements?

 

[Biermann]

I'm looking into the hy-drive pump model 2100... are these quiet? do they increase heat in the tank? anyone have any expierience with these?

http://www.fosterandsmithaquatics.com/product/prod_display.cfm?c=3578+4587+20396&pcatid=20396

If you are thinking about running the 2100 submersed it would be like having a 190 watt heater running all the time in you tank.

If your looking for an external pump look into Reeflo and Pan World pumps, I've heard nothing but good things about both.

 

[TripleT]

If you haven't already considered it, powerheads can provide flexibility and contribute to your tank's overall flow total.

btw... have you checked out this site?

http://www.melevsreef.com/allmysumps.html

Great source of info.

 

[mr.wilson]

If you are thinking about running the 2100 submersed it would be like having a 190 watt heater running all the time in you tank.

If your looking for an external pump look into Reeflo and Pan World pumps, I've heard nothing but good things about both.

I've used both of these lines extensively and they are loud and anything but energy efficient. The Panworld line is reliable and long-lived but the Reeflo line is known to slow down over time and it has a direct shaft drive so the seals need to be replaced every 3-5 years.

Overall, I prefer external pumps due to the lack of heat transfer and longevity. The benefit of a submersible pump is versatility as it requires no holes in the sump or elaborate plumbing and shut off valves. If/when a submersible pump leaks, it does so in the sump, not on your floor.

Poseidon P4 would be my choice for an external pump for your application as it is dead quiet, minimal heat transfer if you vent the area it is located in, and very reliable. It delivers 1250 GPH @ zero head and should be around 800 GPH at 5' with head & friction loss. The head loss calculator isn't working for me. Maybe they are putting pressure on me for canceling my premium membership http://www.reefcentral.com/index.php/head-loss-calculator

As far as sizing the return pump goes, it should match the flow-through/throughput/feed rate of the protein skimmer. If your protein skimmer processes 500 GPH, than that is your target number for the return pump. You should plumb your skimmer so all of the water entering the sump must go through it before moving on to the next section. This can be achieved by directing your protein skimmer effluent/out line so it delivers the processed water over a glass partition. This way all incoming water is processed and done so only once. If your return pump is stronger than your skimmer pump you will lose the difference in bypass, and if your return pump is weaker you will process the difference twice as the processed water migrates backwards into the first (protein skimmer) section of the sump.