Reply With QuoteIdeas? Opinions?
Was wondering which one is a better choice for running a chiller, an external high flowrate pump or powerhead? I understand that an internal powerhead is the cheaper option but would a 2000L/hr one heat up the tank water much? I already have 2x 39w T5 lights for the 3ft tank. How much would a 2000L/hr external pump cost?
I need 2 pieces, one for running the chiller and another for pumping water from a storage container below the tank to into the tank during water change.
Ideas? Opinions?
Plecostomus, Corydoras & Apistogramma Enthusiast
Bro, you can get an external filter to run the chiller and the other you say you need to pump water from a storage container. I asume is sump tank if it is a sump tank then you use a internal power pump.
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Mate, if your chiller tubing/hose are connected through series of elbow joints for in & out let, you will need to also take consideration of head loss in additional of flow rate. See even when you have a pump that has a high flow rate it doesn't or certainly mean it will have a high head, which is crucial, as the flow has to pass through one of either these - elbows, reducers, check valves, ball valves & etc, in the end the flow on the outlet is terribly low.Originally Posted by kaym
All this because the pump isn't a pressurized one or don't have a high head. Of course there are several other factors such as voltage rating, heat dissipation, acoustic level (noise), vibration, parts replacement, after sales service on and on.....!
So my experience and advice to you, is to really read up intensively, do some calculation if possible! Though it's just a water pump but it is still the "Heart" of the system, investment is necessary
Yell if you need help, most willingly to share my experience with you.
Cheers!
Alex
I reckon elbow joints somewhere cant be helped? Especially the length where it hooks at the edge of the tank for inlet and outlet?
There arent too many external filters with high flowrates around, even if there was, they cost a lot and with a load of media inside, the flowrate is going to be noticeably reduced.
Recommendations for a decent external pump or powerhead?
I opt for either these external pump brands (in order of preference), with factors like high head, lower power rating, low heat & low noise
Aquabee
Ehiem
Aquamedic OR
Search individual brands homepage should give you a clue yeh!
i have a query,
i notice some internal powerheads has higher Watt rating than normal canisters with similar flowrates...
why is that so??
just an observation.
Ian
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It matters will with following factors,
No. of motor coil winding
Material of motor coil, weight, dimension & etc
Design of impellers either for high flow rate or high head
Inlet & outlet dimension
Types of used and many others
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hi kaym,
I using haliea external pump of 1300l/hr to run my chiller Resun 650CL for my planted 4ft tank. Used Fluval 404 canister(1000l/hr) to ran my chiller but realized that my water skimmer was not performing...and checked the outlet hose.Its seems not much current even my tetras swim past doesnt affect or bother its swimming at all.
so i ran both fluval 404 cansiter and haliea external pump to ensure my 4ft tank clean and its temp at 24deg C. Sooner or later, use external pump to ran empty pressure filter cansiter and chiller together. So using 2 filters cansiters will be perfect.
If you concern the breakdown of the external pump(china made) use ehiem external pump of 1300l/hr will do the job well.
hope this will help.
Last edited by eddy planer; 5th Dec 2007 at 11:59.
Pretty expensive eh those 'good' external pumps, can get a canister filter for around the same price.
Internal powerheads with higher watt rating = inefficient ?
Eddy, how come the skimmer not working? Is it because the canister filter's flowrate is significantly reduced after going through the media in them? So using a seperate pump to power the chiller is a better idea than running it from the canister filter? Do you prefilter the inlet of the pump first?
Using 2 canisters perfect or using canister + external pump together perfect?
The hailea external pump expensive?
hi kaym,
You see water skimmer suck alot of air, another large volume of chiller and piping system reduce the Fluval 404 's pressure and performance. So i option for another external pump to ran my chiller.
You see i can use external pump to ran both cansiter without pump and chiller... you see from chiller to tank outlet really cause alot of water turbulenceso i will add another cansiter without pump to reduce the turbulence. Like this
Tank > external pump > canister without pump > chiller > tank
So i will have 2 canisters to ensure perfect tank....
Alas, i should have buy pump with flow adjusting fixture. Try any external pump with flow adjusting fixture of 1300l/hr. The pump can be range $45 -$65. Use any China brand pump will do the job.... if you are concern about the PUB bill...remember this is our hobby and we aim for the best . money is not the matter.
Last edited by eddy planer; 5th Dec 2007 at 11:58.
Eddy, so you run the external pump > an empty canister > chiller > tank
Which canister do you use that comes without a pump?
External pump rated at 1300L/hr enough for resun cl650 chiller?
hi kaym,
Yes , i'm using 4ft tank > external pump(1300l/hr) > cansiter with mixture of rings and charcoal > chiller(Resun 650CL) > tank
You can purchase empty transparent canister( $28-35) from havelock road LFs
Work perfecty, but still has water turbulence....
If you must use 2000l/hr pump made sure use adjusting flowrate fixture , hor.
hope this will help you.
Last edited by eddy planer; 5th Dec 2007 at 11:58.
Know where i can good deals for external pumps? Some LFS i asked dont have much varieties.
Maybe its better if stated down your budget, let's us figure the range thats most suitable. How about 2nd hand ones? Lower cost but still got the promise performance.
Cheers!
Alex
I dont mind 1st hand if its below $100.
China made ones are okay... though i also would like to know the cost range for european makes as well.
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I'll wouldn't place the Aquabee on top. Reefers have experienced a drop in performance with this brand.
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Where to find a good range of pumps for sale? Including those china made ones.
Actually i bought this Hailea pump of 1300l/hr from C328. But you can try Qian Yue near Tengah airbase( forgive me cant remember the chinese name) , they have a large variety of external pumps such as Ehiem, Hailea and their housebrand "Oceanfree".
I have checked all the prices from many LFS concerning this 1300l/hr pump is always below $50 for china brand but for european brand like Rena or Ehiem are almost 3x the price .
That your choice China or Europe....for me hailea didnt give any problem for almost 3 months, still working well ranning my CL650 chiller.But i dont recommend to my hailea pump, rather you purchase with adjustment flowrate pump if you want to reduce the flowrate.
hope this will help you
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