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PostPosted: Apr 15th, '10, 11:19 
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thanks

every little bit helps

seems to have stabilized .. I put oyster shells under the fill pipe.....

hope to have the outside GH plastic on outside of the GH by saturday before it rains...

jT

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PostPosted: Apr 16th, '10, 03:59 
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My first major problem with the GH re-do, way bigger than the ST dirt walls caving in.....

the west side of the FT was built with the 2 x 4's installed on edge (1 1/2" wide) as
opposed to the rest of the FT with the 2 x 4's installed on the side (3 1/2" wide) because that side was also supported with the walls of the GH.....

well that didnt work out so well.... the west side of the FT has bowed out about 3" at the bottom... the top of the FT is ok....

My question is .... How can I force the bottom of the FT wall back into place, I know I will have to drain the FT and move the fish to a couple 55 gallon barrels....

there is a 4 x 4 that the FT side wall sits on.. so I need to get the wall pushed back over the 4 x 4 and bolted into place.....

Im open for all suggestions.... the ground is very soft so putting stakes in the ground and pushing on that is probably out of the question.....

below is pics from both ends looking up into the FT... the liner has not pushed into the opening, but may get pinched if not careful...

thanks
JT


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File comment: looking up under the west wall
bowed FT 002  4-15-10.jpg
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File comment: looking up under the west wall
bowed FT 001  4-15-10.jpg
bowed FT 001 4-15-10.jpg [ 336.03 KiB | Viewed 887 times ]

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PostPosted: Apr 16th, '10, 04:47 
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Seriously, this cant be healthy.
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I would probably use ratchet straps and something as a beam along that side that is bowing out.

Basically. Put the beam along that side and perhaps another beam along the other side and use two ratchet straps around the ends of those beams to press that bowing side back in.

Now I know that might not be so easy in your situation since I think one end of your fish tanks is up against the garage wall. You might need to secure the beam on the garage end to the corners of the fish tank itself and then hope that holds secure enough while you ratchet the other end of the beams together at the more open end. Of course while also making sure the liner doesn't get pinched etc. Luckily with ratchet straps you can move slowly a little bit at a time. You may also need an additional ratchet strap so you can tighten one till it gets too full, put the next in place and tighten till it has the load and then re-set the other one. (I've essentially lifted whole shelving units this way alternating ratchet straps.) I've also used a 2x4 on edge with ratchet straps around the ends to help pull in a bowing rectangular fish tank. Even a 2x4 on edge will start to bow under the weight of water though.

Perhaps a 2x4 on edge would work as your beam but I think at least a 4x4 would be advisable.

Hope this helps. Biggest worry would be securing the garage ends of the beams if you can't extend past and use straps.

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PostPosted: Apr 16th, '10, 05:17 
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TC's solution was my first thought, but I think you will have to go a little further...

I would line the sump tank. Transfer fish and all water and then fix it right... Likely will be LESS trouble and less time in the long run than trying the beam/strap trick...

IF you go beam strap route, is it possible to pass a strap under the tank through a very shallow ditch and then use a vertical 4x4 on each side angle out with the lower strap tightened... then throw a strap around the tops of the 4x4s at the top of the tank level and pull them together? You may need to use spacer standoffs so you can slide in the new stringer that runs lengthwise...

Hmmm...

CB

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PostPosted: Apr 16th, '10, 05:21 
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I agree, I think a long ratchet strap around or anchored at its 2 points is the best bet. Or use 2 separate ones and use a 4x4 to pull in the sides. I've done similar things with ratchet straps. Great for pulling in things and making them square. You can create quite a bit of force very easily.

Isn't it amazing how much force the weight of water can create?


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PostPosted: Apr 16th, '10, 05:26 
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I think there is actually a concrete slab under the fish tank.

If so, perhaps anchoring the beams vertically to the slab with really long bolts that could be tightened slowly at the bottom while ratchet strapped at the top to help suck the side back in.

Yes, I agree, line the sump. Move the fish down there temporarily while fixing the main tank.

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PostPosted: Apr 16th, '10, 05:27 
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JT I imagine something like this. You could make it vertical, horizontal or whatever. You can ratchet the 2 straps independently and then adjust as necessary. If you cant get 4x4s on both sides see if you can get an anchor point.


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PostPosted: Apr 16th, '10, 05:38 
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Exactly hawaiinewbie has drawn a picture of what we are all talking about!

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PostPosted: Apr 16th, '10, 07:10 
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I understand. Just thinking the closer the straps, the less likely the 4x4s will bow... I figured top to bottom was a shorter distance.

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PostPosted: Apr 16th, '10, 07:15 
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Let us know if it works!


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PostPosted: Apr 16th, '10, 08:09 
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thanks for all the advice.....

didnt think about the straps....

I now know what the problem was.. I didnt bolt the bottom of that wall ... duh!!!!

got all the rest, but forgot that one.... ...

been thinking about it..... I have already taken out half the water..... and put into barrels...

I can move the bottom of the wall with my foot, so thinking of getting a piece of flat bar, 4 inches wide and 3/16" thick.. bolting it to the bottom of the west wall then use the straps to pull it in as far as possible and then bolt it to the 4 x 4, then it would be a very strong fix.....

what do you think?

JT

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PostPosted: Apr 16th, '10, 14:09 
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Yep, that should work.

Rather than the strap method I'd probably start quick and dirty and simply pry the wall back with a piece of 2x4, assuming you can't just kick or shove it into position. Just nail the end to the 4x and get a friend to pull/push the upper end while you bolt or nail the wall down.

I'm betting you can just shove it into position with nothing extra.

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PostPosted: Apr 16th, '10, 19:17 
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I will probably take more water out of the FT and get things together for the fix.....

I am going to get some round foam and put between the liner and the opening in hopes of pushing the liner up out of the way when pushing the wall back in..... dont want to pinch it in any way....

just another kink in the road......

jT

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PostPosted: Apr 16th, '10, 20:08 
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Instead of the 4x4's, I would take a piece of 1.5" angle iron and drill hole through it every few inches. Also drill holes through the base 2x4 and bolt the angle iron to the base. Run a carriage bolt through it. Make sure you put a washer on to keep the head from pulling through. Better yet, if you can fit it in, put the angle iron on the inside like drawn in the second diagram. You could also turn the second one around so it's facing the other way if you can't fit it under the wall.

(dark blue=carriage bolt, light blue=washer, orange=angle iron)

When I had my wooden tank, I fixed it with this solution....the 4x4 is strong, but will eventually bend under the pressure...

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PostPosted: Apr 16th, '10, 21:54 
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Yea, my plan with the 4x4 or whatever type of beam was actually only as a temporary beam to press the side in while it was being bolted and reinforced. If you are actually emptying the tank and going in under the liner, chances are you may not need that much extra help bending the tank wall back into place.

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