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| Stiffler |
06-11-2004 10:47 PM |
Sealing barbs to pump...
My pump's manual says not to use teflon tape to create a watertight seal for the inlet and outlet. What should I use instead? I would like to be able to remove the barbs if I have to also. Any ideas?
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| Groth |
06-11-2004 11:20 PM |
Teflon tape can be sliced into tiny shreds when screwing fitting together. Tiny shreds of teflon clog waterblocks and wrap around impellors.
What pump?
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| Stiffler |
06-11-2004 11:28 PM |
It's a Dolphin Pond 385GPH pump. Is there some sort of silicon caulking that I can use but wont seal permenantly?
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| Groth |
06-11-2004 11:39 PM |
The putty-like thread sealers commonly known as 'pipe dope' should work. Any place that sells plumbing parts will have it.
Does that pump have a fairly thin plastic housing? Another reason they warn against teflon tape is that it makes it easy to over-tighten the barbs and crack the housing. Plastic fittings reduce this risk.
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| nexxo |
06-12-2004 05:29 AM |
True, but I have used teflon successfully. It's all in how you wrap it around the thread of the barb, and how carefully you screw it into the pump.
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| Stiffler |
06-12-2004 09:06 PM |
Alright, I'll get some plastic fittings and some pipe dope. Thanks for the information. I didn't even think about the tape getting into the system. Thanks.
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| bobkoure |
06-13-2004 09:33 AM |
Loctite makes a teflon pipe sealer paste that I like a lot. Very useful stuff. Your local auto parts store almost certainly has it...
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| Turbokeu |
06-15-2004 06:57 AM |
Quote:
Originally Posted by bobkoure
Loctite makes a teflon pipe sealer paste that I like a lot. Very useful stuff. Your local auto parts store almost certainly has it...
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I use this sealant from Loctite and I like it a lot too:
http://users.skynet.be/turbokeu/myco...0/pict0183.jpg
It's normally meant for plastic threadings but it works great on metal or mixed threadings too, and it's not permanent.
CD :)
Edit: 200th post! |
| Stiffler |
06-15-2004 07:26 AM |
And none of these will seal so tight that I can't get the barbs off with a little force, right?
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| Turbokeu |
06-15-2004 09:14 AM |
Quote:
Originally Posted by Stiffler
And none of these will seal so tight that I can't get the barbs off with a little force, right?
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The Loctite 5331 is flexible after drying, and not permanent.
CD :) |
| bobkoure |
06-15-2004 09:49 AM |
And the teflon paste will actually make it easier to remove (than dry threads).
FWIW, I've gotten fittings loose that have been sealed with Goop - but they were metal-on-metal and I was using an air impact wrench.
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