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Best way to fix a pump inlet leak.

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Tuhran

Member
Joined
Aug 25, 2001
Location
GA, USA
OK, fellas, I just started the filling and bleeding process, and I have a leak at my Eheim 1250 inlet. Not a seep, but a drip........drip.........drip.
I know I can fix this dry with some silicone sealant, but I really, really do not want to drain this system. I just checked on it again, and the air is bleeding out very nicely.
I have some JB Weld, but I don't think it can be applied to a wet environment, and I also don't want any of my connections to be that permanent.
How about a quickly applied glob of silicone wrapped tightly with some 5th Force (duct tape)? Will the uncured silicone stop the leak until it can set up?

Help?
 
I have hose clamps on every connection.
What I think I did wrong on the pump inlet was to overtighten the barb on the O-ring. I substituted brass inlets and outlets on the Eheim (5/8" on the inlet). Knowing that the brass NPT threading was slightly different from the European standard on the Eheim, I used teflon tape, silicone, and a O-ring.
The silicone made the connection "slippery", and when I tightened the fitting in finger-tight, the O-ring squeezed out of the gap.
I wondered if this might give me trouble later, but figured the teflon tape and silicone would seal the joint sufficiently.
Guess I was wrong... :rolleyes: .
 
OK, wierd, but good.
The leak just stopped! (Or slowed to an unnoticable seep.)
I've slathered everything with silicone and will monitor.
Who says WC'ing isn't fun?
 
Ahh,

Thats not fixxed the right way.
If your set on using brass barbs I would recommend for you to just take everything apart and start over after you fix the leak.

Use some clear silocone around the barbs and let it dry for a few days to be safe.

If you don't fix it, it will eventually turn into a big problem for you.
Just my $0.02. :p
 
i had to do the same thing once and it worked fine. The next time i had the system apart i drained it and then fixxed the problem, but i had no complications with the temporary fix
 
I know that draining, disconnecting and resealing is the best way to do this, but as I said, I just got this whole thing put together and up and running and I really, really don't want to do that.

The connection is still not leaking, and in addition to the extra silicone, I thought I would try some of this stuff on it.

I acknowledge that this is semi-temporary (or is that semi-permanent), and I will redo things properly the next time I do an overhaul.

Thanks for your thoughts; always good to get a variety of opinions.
 
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