Eheim Pro III leaking seal - The Planted Tank Forum

 
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post #1 of 11 (permalink) Old 01-25-2011, 03:24 PM Thread Starter
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Eheim Pro III leaking seal

I was on my way out of the house this morning when my wife came running after me to tell me an alarm was going off in my fishroom/office. Turned out to be the leak detector under the 125. Took a while to find the source of the leak. There was water dripping down the electrical cord on one of the Eheims (this tank has three canister filters, all Eheim Pro IIs or IIIs).

The last time I had touched this canister would have been at least two weeks ago. I think that pressure builds up in the top of these filters when the media becomes clogged and if the seal is not so great this may cause it to fail.

Probably I will need to replace the seal on this unit. Never done that before.

All my Eheim Pro's are sitting in plastic boxes now. And I think I'll probably keep them that way from now on.
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post #2 of 11 (permalink) Old 01-25-2011, 04:17 PM
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Bummer, rotten way to start the day.
Now you have me concerned about mine after 2yrs. leak free LOL

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post #3 of 11 (permalink) Old 01-25-2011, 04:20 PM
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Lube the O-rings occasionally and it'll extend their lives. But they will die eventually, and you'll have to replace them. Not a big deal, but something to remember.
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post #4 of 11 (permalink) Old 01-25-2011, 05:23 PM Thread Starter
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Good point. I have not been lubricating the O-rings, or actually paying any attention to them at all.
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post #5 of 11 (permalink) Old 01-25-2011, 07:38 PM
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All o rings in a canister should be lubed once and a while, I give a quick lube when I clean my filters.


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post #6 of 11 (permalink) Old 01-26-2011, 06:03 AM
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What do you lube them with?
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post #7 of 11 (permalink) Old 01-26-2011, 12:03 PM
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Vasiline will work, or if you like, plumbers grease from hd is great too.
Just apply a very thin coat, you do not want to glob it on.


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post #8 of 11 (permalink) Old 01-26-2011, 03:52 PM
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I have a product that is called "eheim vasoline" Or something ot that effect... also, I have heard you can use vegetable oil...


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post #9 of 11 (permalink) Old 01-27-2011, 03:16 AM Thread Starter
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My wife called Andy, our local LFS guy and he said that several people had reported problems with these filters leaking. As a result he had acquired some replacement heads for Pro IIIs for a reduced price from the manufacturer. I bought a complete replacement head for $40 and my filter is now up and running perfectly.

I really am not sure I needed more than a gasket but I figured I could not beat the price and if I find a gasket somewhere I will have an extra head as a spare.

If you are in Houston you should check out Andy's Fishland, Westheimer and Synott. I've been doing business there for more than 20 years. He's a great guy. He does not carry plants. Has a lot of marine tanks and his freshwater tends toward plant-unfriendly species like cichlids and africans. But I still enjoy shopping there.
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post #10 of 11 (permalink) Old 01-27-2011, 04:21 AM
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Fantastic score!


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post #11 of 11 (permalink) Old 01-27-2011, 04:32 AM
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I like silicone grease for my pro 3. I bought a little chapstick sized container of the moen brand stuff at homedepot and it is very very thick and sticky. It's made for orings for taps so I know it's safe lol and it seems to penetrate the o-rings 100000% better than vaseline which just coats the outside, and hardens up over time. I didn't lube it up for a month after getting it and the o-ring was really dry, didn't even have any from the factory it seemed

just my two cents

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