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Wobble in tank section?
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#1 (permalink)      12/16/2014 3:40:55 AM US Central   quote/reply + tips
bluedia
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Wobble in tank section?
I bought the "OEM" version which recently arrived and while I am impressed at the overall quality, I am really disappointed to find that the entire tank section (including the Aqua logo-ring piece), while solidly assembled together, has a pretty severe wobble/tilt and looseness in relation to the base section below (everything below the Aqua logo piece). It's fine when screwed all the way down but becomes extremely apparent after twisting to reveal the air hole. It is severe enough in tilting and moving that it affects the air flow/draw.

Any ideas? I thought maybe it was the o-ring and can try swapping out but the way it tilts has me thinking the tolerances weren't tight enough somewhere else. BTW, I noticed this with the PC tank installed. I'll try the SS section after I finish this juice.

Thanks for any suggs.
#2 (permalink)      12/16/2014 4:04:16 AM US Central   quote/reply + tips
bluedia
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Ok, bugged me enough to where I took it apart again to examine. Confirmed the wobble is not due to the tank as it also exists when only the base and chimney section are assembled. The chimney/bell section is what tilts. Like the inner threaded area of it is too wide or the base threaded area that goes inside is too narrow vs what it should be. Maybe this is why the "OEMs" were released to FT? They weren't going to be able to meet Footoon's tolerances?

Screwed fully down is fine but as soon as I screw it up as you would to expose the air hole, it wobbles/tilts. Hard to estimate but I would guess .5 to 1 mm (!) wobble/tilting in any direction on the horizontal plane and as applied.

Anyone else find this to be the case?

May have to return it. If so, it would be my first FT return :(
#3 (permalink)      12/16/2014 4:12:28 AM US Central   quote/reply + tips
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Hartoled
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Take a pipe flaring tool to the base.
KF4 Leaking? For a more secure seal, replace the o-ring #16 with one that is 1.5mm cross section. SKU 1536606 or SKU 1536607
#4 (permalink)      12/16/2014 4:16:04 AM US Central   quote/reply + tips
bluedia
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Thanks for the suggestion but unfortunately I do not have access to such a thing. I wouldn't even want to attempt.

Bummed majorly at the very bad tolerances with this device.
#5 (permalink)      12/16/2014 4:24:20 AM US Central   quote/reply + tips
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Hartoled
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+1 details
Oh, sorry. My head was still in Taifun mode.
KF4 Leaking? For a more secure seal, replace the o-ring #16 with one that is 1.5mm cross section. SKU 1536606 or SKU 1536607
#6 (permalink)      12/16/2014 5:16:46 AM US Central   quote/reply + tips
bluedia
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+1 details
Update: 2X circling and filling of the air flow control-located o-ring groove with dental floss has eliminated nearly all of the wobble. I had previously tried using the replacement o-ring but it hadn't addressed the problem. What a pain in the rear. Well, at least the wobble is mostly taken care of.

Still not sure though if it's a problem with the o-ring groove, o-rings themselves or it's a problem with bad tolerances in the chimney and base section and the fattened up o-ring has compensated for it.
#7 (permalink)      12/16/2014 5:25:40 AM US Central   quote/reply + tips
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Hartoled
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+1 details
Too funny. Dental floss also crossed my mind.

I've found PTFE tape to be very handy for temporary fixes. One use that I have found for it is to wrap the ends of silica wick. I just wrap an inch or two of tape a turn or two around the wick's end, twist it up by rolling it in my fingers, feed the pointy end of the tape that I made through a coil, and pull the silica right on through. Once it's out the other side, the tape just slides right off, no waste, no mess, no unraveling, and no broken bits of silica around.
KF4 Leaking? For a more secure seal, replace the o-ring #16 with one that is 1.5mm cross section. SKU 1536606 or SKU 1536607
#8 (permalink)      12/16/2014 9:18:34 PM US Central   quote/reply + tips
dravell
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The authentic does it too.
But yes its the oring.
#9 (permalink)      12/17/2014 11:01:14 AM US Central   quote/reply + tips
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Snorkelwhacker
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It wobbles a bit by design. It shouldn't affect performance.

If it does affect performance, well, that's one more shot through the heart of the notion that this is authentic/OEM/1:1. my $22 version works perfectly.
Rube Goldberg would get a kick out of "temperature control" devices.
#10 (permalink)      12/21/2014 3:45:42 AM US Central   quote/reply + tips
ArchStanton
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dravell wrote:

The authentic does it too.
But yes its the oring.



Do you know if there is o-ring pack that fasttech sell which would eliminate the wobble? Dental floss is abit naff.

#11 (permalink)      12/21/2014 11:58:07 AM US Central   quote/reply + tips
Dampden
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My Aqua V2 does not wobble in fact it is a perfect piece of machining to only $25.