Uniseal Test For Those Interested

Discussion in 'Equipment' started by Eric, Mar 26, 2010.

  1. Eric

    Eric Google Warrior
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    I decided to use Uniseals in place of bulkheads, what I have is 6x1" returns from the sump and a 1500gph overflow kit.

    The reason for using uniseals is to cut down on the length of the plumbing sticking out the side of the tank. I managed to shave off about 2.5" so it's a substantial difference.

    Here's a picture from 2 1/2 days ago when I filled the tank for test.

    [​IMG]

    I have not doubt these will hold up for the long haul. Installing them take a little work and a lot of force to get the pipe through the uniseal, even with lubrication.

    I have been abusing the seals 3+ times daily to try and intentionally create a leak with no luck, these things are solid.

    What I mean by abusing is twisting, turning, pushing, pulling, and basically working the 1" pvc in a motion similar to what you would do to remove a fence post. I have even applied enough pressure I was worried the glass might break, I have not been gentle and still not a drop of water. There has also been some pretty drastic changes in day and night temps these past few days, so that's a little more abuse for the seals to with stand.

    I'm 100% sure these will not leak, I am going to replace these seals due to the abuse I put them through but if anyone has considered using these one a tank I'd say it's definitely an option.

    Just wanted to share my results to this point, I had no luck trying find information on whether or not they were safe to use in a glass aquarium.
    Ok back to the abuse, I will keep posting results for the next couple days till I drain the tank, I am sure they will be the same.
     
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  2. 1ofManyNguyens

    1ofManyNguyens New Member

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    did you add salt to the water? Do you think the salt will have any effect on the seal?
     
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  3. Eric

    Eric Google Warrior
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    These seals are made to hold up to saltwater and other chemicals, they are used on skimmers, stock tanks, 55 gallon drums, trash cans, Pvc, basically anywhere you can't fit a standard bulkhead. I just couldn't find any info about using them on a glass tank.

    Here's some pics of the testing, just picture the angle in a rotating motion.

    [​IMG]

    [​IMG]

    [​IMG]
     
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  4. Eric

    Eric Google Warrior
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  5. Eric

    Eric Google Warrior
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    3 1/2 days and it's all good, :) I worked the seals about 8 times today and still no leak.
     
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  6. BLAKEJOHN

    BLAKEJOHN New Member

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    They seem to be a good alternative to bulkheads. The only thing that I question is how long will they last? I understand that they are resistant to acids and grease, but being that they seal by inward pressure against the pipe, they need to remain pliable. The problem I see here is after a years time. Regardless of the seals resistance I think it will dry out, shrink a little and harden. As long as the pipe is never moved once this happens i would not foresee a problem. But one good bump while working on the tank later on or removing the pipe for cleaning, I dont think it will ever seal again.

    Just my thoughts....
     
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  7. Eric

    Eric Google Warrior
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    Uniseals will not harden over time like rubber, so that's not a problem.

    The seal created by the uniseal is the whole way through but a lot of it is on the inside of the hole, It's a snug fit from the outside in.

    I was skeptical as well but after reading up and realized these are made for commercial and industrial use and built to last, I decided to give them a try. I think the hobby more or less adopted them it was not the intended purpose when they were made. :)
     
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  8. MikeinToronto

    MikeinToronto Member

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    It looks like they should last a while, but I cringe every time I see you twisting the pipes like that. It looks like the glass will break every time.
     
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  9. Frankie

    Frankie Well-Known Member
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    Cool thread Eric.
    Uniseals work well with saltwater. They have been in use in the hobby for many years now and I have never heard of one failing. Yet ;)
    The normal application for them is equipment like skimmers and such.
    Interesting idea to use them as bulkheads for space and money saving.
     
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  10. Eric

    Eric Google Warrior
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    Thanks Frankie, I figured this info should be posted for others, I wouldn't recommend anyone else trying this test as they are a little violent, :) I'm willing to take the loss of a tank if it happens to break.

    Mike, I got to push them to the limit if I am going to call this a test :) I would have used a plastic or rubber container but I it would flex with the seals and not really apply the full pressure to the seal, with glass there is no give so the seals take all the abuse. :)
     
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  11. rgfast

    rgfast New Member

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    Eric looked at wedsite didn't see anything as far as thickness. Just wonderring about using with glass 3/4 to maybe an 1"
     
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  12. Eric

    Eric Google Warrior
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  13. Eric

    Eric Google Warrior
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    A shot showing how I pull them in and out, this take quite a bit of effort

    [​IMG]

    You can see I have pulled them out far enough to knock off the 90s I had on the ends, still no leaks.
    [​IMG]
     
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  14. Eric

    Eric Google Warrior
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    Day 7 in the bag, working on day 8 and not even a little condensation. ;)
     
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  15. BLAKEJOHN

    BLAKEJOHN New Member

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    Sweet.. now we need an alternative to drilling the glass and still get that same hole through it..
     
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  16. Eric

    Eric Google Warrior
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    There is alternatives, just not as easy. You can grind it, router it, or torch it :) lol
     
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  17. Eric

    Eric Google Warrior
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    14 days in and all is well :)

    Tomorrow I will drain the tank and refill it to continue, the water is getting a little nasty plus I want to check one of the seals just to see how they are taking the abuse on the inside.
     
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  18. Eric

    Eric Google Warrior
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    Abused for 18 days and now I'm done with the testing, :) there is no doubt in my mind that they'll hold up.

    Draining.

    [​IMG]
     
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  19. bigpapaoffive

    bigpapaoffive New Member

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    Nice post Eric, very useful info, can't believe the pressure you put to those puppies
     
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  20. Eric

    Eric Google Warrior
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    Thanks Al, I'll get some pictures of the seals later today, there is little to no damage considering I was literally trying to destroy them. :) Obviously you can't put that much stress on anything without a little damage.
     
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