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Old 06-10-2013, 05:06 PM   #11
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First, thank you moderators for "cleaning up" this thread...

Second -- Ian, I wanted to let you know that I checked out those prefilters you linked above, and I'm intrigued...the thing is, do you know if any of them will fit the AquaClear 110's intake strainer?
Yeah I reckon it will fit. I have a fairly thick intake and it stretches over that. It is a bit of a stretch but it does fit. You want one that has a big hole in the middle, if that makes sense...haha. If you have a local fish store that sells them, you could always bring your intake strainer or the bottom half of it, with you and try it on. The fluval one comes in a non-sealed package, so you could try before you buy.....
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Old 06-10-2013, 05:14 PM   #12
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Yeah I reckon it will fit. I have a fairly thick intake and it stretches over that. It is a bit of a stretch but it does fit. You want one that has a big hole in the middle, if that makes sense...haha. If you have a local fish store that sells them, you could always bring your intake strainer or the bottom half of it, with you and try it on. The fluval one comes in a non-sealed package, so you could try before you buy.....
I see; thank you for the info...I ask because I never used a prefilter before...

Here's another thing, though: I know the prefilter will cause the larger debris like uneaten food floating by or fish waste to be "caught" on it and not go up the intake stem, but do you really think this system will also allow for the bubbles to stop being caught up by it? Further, will the filter actually STILL be filtering with the sponge around the intake -- I mean, water will still PASS through it, right?
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Old 06-10-2013, 06:57 PM   #13
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I see; thank you for the info...I ask because I never used a prefilter before...

Here's another thing, though: I know the prefilter will cause the larger debris like uneaten food floating by or fish waste to be "caught" on it and not go up the intake stem, but do you really think this system will also allow for the bubbles to stop being caught up by it? Further, will the filter actually STILL be filtering with the sponge around the intake -- I mean, water will still PASS through it, right?
You could cut down the food a bit and/or turn off your filters when feeding. When I am feeding, my aim is always not to allow any food to hit the substrate, unless you have bottom feeders of course!!. Feed tiny amounts and as soon as they show signs of stopping you stop feeding. The poop will of course get stuck, but less food, will mean less poop. If you gently remove the intake, the sponge can be rinsed in some used take water. I clean the one in my guppy fry tank, who are almost adults now, about every three days. I just rinse it in normal warm water from the tap but you can use old tank water if your worried. Your BB is inside the filter, so I don't worry about any on the prefilter. The bubbles might not be completely stopped from going into the intake but should be significantly reduced. It's a cheap option and could be a cheap solution. The water will still pass through no problem. It will still be biologically filtered, no issue there. It is definitely worth a shot and can do no harm......
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Old 06-10-2013, 08:24 PM   #14
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Thanks man.
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Old 06-13-2013, 03:10 AM   #15
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I've cut canister hose (Slit one side to snap over offending section) I had left over to fit over the section of the airstone when I've had that problem. It saved on having to keep cleaning the sponge over the intake. You really do need to correct that as the cavitation over time will eat through the fins on the impeller.
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Old 06-15-2013, 09:47 PM   #16
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I've cut canister hose (Slit one side to snap over offending section) I had left over to fit over the section of the airstone when I've had that problem. It saved on having to keep cleaning the sponge over the intake. You really do need to correct that as the cavitation over time will eat through the fins on the impeller.
Thanks, Vash.

What concerns me most about your statements is that you seem to be confident that the cavitation from the bubbles being sucked into the filter will eventually eat through the impeller's fins; do you really think this will happen, and if so, am I okay with merely trying to move the bar away from the intake once again?
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Old 06-15-2013, 10:14 PM   #17
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Thanks, Vash.

What concerns me most about your statements is that you seem to be confident that the cavitation from the bubbles being sucked into the filter will eventually eat through the impeller's fins; do you really think this will happen, and if so, am I okay with merely trying to move the bar away from the intake once again?
Well I know that bubble cavitation will eat through the steel propeller of a ship. That being the case I'm pretty sure that they will also eat through plastic in a confined space such as the tube that houses it over time. That noise you are hearing is the result of the shockwave (albeit small) that the air vs plastic is generating. That must cause damage over time.
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Old 06-15-2013, 10:16 PM   #18
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Well I know that bubble cavitation will eat through the steel propeller of a ship.
Seriously?

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That being the case I'm pretty sure that they will also eat through plastic in a confined space such as the tube that houses it over time. That noise you are hearing is the result of the shockwave (albeit small) that the air vs plastic is generating. That must cause damage over time.
Well, if that's true what you say above then of course it will damage plastic; can I try moving the bar forward a bit away from the intake vacuum?
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Old 06-16-2013, 01:44 AM   #19
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Seriously?



Well, if that's true what you say above then of course it will damage plastic; can I try moving the bar forward a bit away from the intake vacuum?
The problem with that setup might be one of circulation. Any debris would need to enter from the sides and rear only as it wouldn't make it through the wall of air. That was why I went with the air wall in the first place. I shut down the filters when I feed but don't like how the food tends to sink or float with little distribution without the current. That bubble wall tends to keep the water flowing and the debris doesn't build up along the back wall between the two intakes I have either. I agree that it looks great having the solid line of bubbles but the noise along with the damage done had me slip the air condom on the stone I was using at that time. I ended up changing that plan when I added the 400 bio-wheel tank hanger I had 2 intakes to deal with so I ditched one stone that never worked well and went with 1 24 inch between the 2 intakes instead of the almost 48 inches of airwall I had before. I'm going to get rid of the stone altogether and go with a plastic wall tube though.

When I was a kid in the 70's I always made them myself out of air tubing and a hot needle, wish I had patented that idea at the time hehehe
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