Is There Such A Thing As A Big And Quiet Filter?
#21
Posted 20 August 2012 - 09:05 PM
#22
Posted 20 August 2012 - 10:02 PM
Cheers
#23
Posted 21 August 2012 - 02:00 PM
bowdy - yeah man no sleep sucks. how come I don't need to turn down the inlet to the same rate? Wouldn't that put more pressure on the inlet?
#24
Posted 21 August 2012 - 02:11 PM
Give it a shot and let us know how you go.
#25
Posted 21 August 2012 - 02:52 PM
There is no need man it's a feed to the canister it's much better to have more water avalable to the canister then not enough and the head trying to draw more water.
#26 Guest_Fish-lips_*
Posted 21 August 2012 - 03:19 PM
#27
Posted 21 August 2012 - 03:30 PM
There is no need to limit the inlet as that will some times cause issues with your canister sucking hard on your hoses and also some times sucking air threw parts of your joins and other issues. but Limiting your outlet is a good thing for a lot of pumps
#28
Posted 21 August 2012 - 03:54 PM
#29 Guest_Fish-lips_*
Posted 21 August 2012 - 04:10 PM
#30
Posted 21 August 2012 - 04:30 PM
It might be possible that the canisters are not low enough in conjunction to the tank height. Your pumps are pumping strong, but the water supply to the canisters are not quite enough. The further down the canister from the tank the stronger the gravity feed supplementing pump more water pressure. I see these canisters fx 5 as this being a flaw that doesn't effect other brands so much in this way.
I had my filters sitting on the same level as tank, bottom of tank level with bottom of canister. They were noisy like water gushing inside a shoebox. I lowered the canisters so their bottoms were 300mm lower than the tank base. The noise lessened by 80% !!!
I now have the bottoms of canisters 700mm lower than base of tank, sitting on the ground increasing gravity feed tenfold, they are now super quite, impossible to hear. The instructional diagram that comes in the box show the canisters having to be lower than the aquarium.
I guess also the shallower the tank the effects are worse.
#31
Posted 21 August 2012 - 04:37 PM
#32
Posted 21 August 2012 - 04:46 PM
Ehime are they some new Chinese brand Dave. Never heard of them
#33 Guest_Fish-lips_*
Posted 21 August 2012 - 05:05 PM
I'm helping someone out
Your a complete drop kick
#34
Posted 21 August 2012 - 05:07 PM
#35 Guest_Fish-lips_*
Posted 21 August 2012 - 05:08 PM
#36
Posted 21 August 2012 - 05:43 PM
I'm helping someone out
Your a complete drop kick
What is a drop kick? people say that at school all the time but im just not 'with it' i dont even have face-book!!
i got a 2217 and its realy good! my fx5 is good but its on my big tank but the filter is out of my room..
Edited by fishking123, 21 August 2012 - 05:43 PM.
#37
Posted 21 August 2012 - 05:49 PM
I'm helping someone out
Your a complete drop kick
Gees sorry Dave just having a friendly laugh no need to crack the tissues out. Didn't mean to offend where all here to help jas out but a little bit of light hearted humor isn't bad. Jas sorry if I disrupted your thread and let me know if you want them removed.
Cheers.
Edit. Replying to king's question.
Basically king a drop kick is the same as saying someone is a loser or similar. Hope this helps.
Cheers.
#38
Posted 21 August 2012 - 05:52 PM
Due to these pumps being centrifugal pumps you can throttle in the discharge as much as you like and you wont damage the pump, only when you run the pump dry will you damage it as the water acts as a lubricant and a coolant
#39
Posted 21 August 2012 - 09:08 PM
Because the canister is enclosed, the gravity fed siphoning water downwards assists the water drive that has to be pumped upwards by the pump. This actually cancels out a lot of head height reduction. In fact it assists the pump. Water being fed in creates pressure inside canister to expell outwards.
#40
Posted 21 August 2012 - 09:19 PM
The further the drop with siphoning the faster the water flows, so the lower you go, the more assisted the pump is. The noise I reckon that comes from the impeller is cavitation. Restricting it may solve it sound wise. But get enough flow to the impeller and the volume will be there to push, thus not cavitating.
Head height on canister does not work the same way as a open sump. An open sump is not pressurized.
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