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PostPosted: Apr 18th, '09, 16:56 
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you can buy a geotextile blanket. It is a synthetic textile fabric you lay it on damp ground etc then put a layer of crusher dust over the top. Weight applied to the surface is distributed evenly over the underlying fabric. No sinking, they use it in road works etc. You can drive a truck over swampy ground with geotec underneath.


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PostPosted: Apr 18th, '09, 22:32 
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thanks for the info...

I took a sand mix concrete and put it over the crush and run.. so it will make the top
couple of inches just like concrete.... and help spread the load...

I will be putting more CnR over the rest of the floor to raise the it up above the rain level

jT

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PostPosted: Apr 19th, '09, 02:59 
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Things are starting to take shape....

getting the 4x4's set up on the CnR slab... the sand mix cement did a great job making
the top portion of the CnR just like concrete....

ran out of 4x4's so did some test fittings ........ to make sure things would fit....

looks like im about 1/8" low on one side... thats over 102", I think I can live with that....

jT


Attachments:
File comment: just starting to layout the 4x4's, the 2x2's on the left are spacers and the west wall will be bolted to the GH west wall for more support
AP Pics 5 4x4 started.jpg
AP Pics 5 4x4 started.jpg [ 208.92 KiB | Viewed 6167 times ]
File comment: Fitting the first sheet of 1/2" plywood to the 4x4's... there will be lots of support 4x4's and double layer of plywood, thinking about filling voids in 4x4's with sand for more support
AP Pics 5 plywood base 1.jpg
AP Pics 5 plywood base 1.jpg [ 225.55 KiB | Viewed 6152 times ]
File comment: Test fitting the west and south wall... there will be more plywood glued and screwed over the entire panels
AP Pics 5 back wall test fit 1.jpg
AP Pics 5 back wall test fit 1.jpg [ 227.74 KiB | Viewed 6162 times ]

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PostPosted: Apr 19th, '09, 03:01 
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here's a pic looking east.... looking at the west wall...

will leave the door in place.... can be extra air flow....

jT


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File comment: looking at the outside of the west wall
AP Pics 5 west wall from outside.jpg
AP Pics 5 west wall from outside.jpg [ 268.28 KiB | Viewed 6150 times ]

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PostPosted: Apr 19th, '09, 03:11 
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Seriously, this cant be healthy.
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From looking at the picture, it looks like you are laying plywood over 4X4s and building the fish tank frame on top of that? I would suggest that the bottom of the fish tank liner could rest directly on some foam insulation on top of the crush and run/cement mix. I don't think plywood alone is enough support for that much water. (Then again you did mention running out of materials and just test fitting, perhaps you plan on lots more 4x4s under the plywood.)

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PostPosted: Apr 19th, '09, 03:14 
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Hey TC...

yes quite a few more 4x4's and then sand in the voids..... Im over building it... just in case

Will take pics of finished base and see if it looks ok

jT

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PostPosted: Apr 19th, '09, 03:23 
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Seriously, this cant be healthy.
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OK. I just had this image of the plywood bending then ripping out altogether. I should have known you would have it well over engineered :wink: though.

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PostPosted: Apr 19th, '09, 04:57 
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its finally getting nice enough to clear out the GH..... im working around the plants right now... having a yard sale in a week or so and will be selling LOTS of starter plants.... so I can then start on the ST......

jT

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PostPosted: Apr 20th, '09, 07:58 
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Here is todays progress......

another few days and the FT shell will be done...

question:

will the heavy duty liner conform to the corners? or should I put in some 45 angles to ease the stress? mainly on the bottom 90 degree corners....

jT


Attachments:
File comment: 4x4's in place ready for plywood
AP Pics 6 base.jpg
AP Pics 6 base.jpg [ 224.62 KiB | Viewed 6089 times ]
File comment: first layer of 7/16" plywood, will be a second later making the plywood base approx. 1 1/8" total
AP Pics 6 first layer plywood.jpg
AP Pics 6 first layer plywood.jpg [ 215.38 KiB | Viewed 6085 times ]
File comment: the west wall is installed, the GH frame will add extra support
AP Pics 6 west wall installed.jpg
AP Pics 6 west wall installed.jpg [ 211.62 KiB | Viewed 6075 times ]

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PostPosted: Apr 20th, '09, 08:05 
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next set of pics...

jT


Attachments:
File comment: west wall inner skin being installed.... pond liner will be next to this
AP Pics 6 west wall inner panel.jpg
AP Pics 6 west wall inner panel.jpg [ 210.84 KiB | Viewed 6069 times ]
File comment: the south wall installed..... screwed in using 3" screws.. will put in lag bolts and washers tomorrow or tuesday
AP Pics 6 south wall installed.jpg
AP Pics 6 south wall installed.jpg [ 209.87 KiB | Viewed 6064 times ]
File comment: the north wall installed, the garage wall will provide some extra support
AP Pics 6 north wall installed.jpg
AP Pics 6 north wall installed.jpg [ 208.64 KiB | Viewed 6063 times ]

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PostPosted: Apr 20th, '09, 08:06 
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Last pic for today....

you can see how cramped it is right now

jT


Attachments:
File comment: got to get the plants out...
AP Pics 6 cramped conditions.jpg
AP Pics 6 cramped conditions.jpg [ 254.86 KiB | Viewed 6066 times ]

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PostPosted: Apr 20th, '09, 08:36 
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If you are using EPDM liner, you should be able to fold it well enough into the corners that it should be fine. If you are worried about it perhaps a little bead of something around the bottom to ease from the sides/ends down onto the bottom but I've never worried too much about that, just don't secure the top edge too strongly until after filling the tank at least part way so the weight of the water can push the liner down into the corners.

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PostPosted: Apr 20th, '09, 10:18 
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thanks TC.....

was worried about the sharp corners at the bottom...will put a bead of some latex caulking along the bottom seam...

as soon as I get the ST dug in, I will be ordering the liner....looking forward to getting it up and running...

JT

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PostPosted: Apr 23rd, '09, 01:21 
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A little more done today....

got the east FT wall in place and bolted down....

was thinking about using the HDOE sheets, which were really reasonable priced, but when I looked at the plastic welders, I was floored... waaaayyyyy out of my price range...

USP website has any kind of plastic you might be looking for...
http://www.usplastic.com/catalog/default.asp


JT


Attachments:
File comment: had to countersink for 4" lag bolts..
GH AP 7 bolt detail.jpg
GH AP 7 bolt detail.jpg [ 186.46 KiB | Viewed 5984 times ]
File comment: used lag bolts to install
GH AP 7 east wall bolted down.jpg
GH AP 7 east wall bolted down.jpg [ 238.88 KiB | Viewed 5983 times ]
File comment: Wall in place and lag bolted down
GH AP east wall installed.jpg
GH AP east wall installed.jpg [ 260.06 KiB | Viewed 5977 times ]

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PostPosted: Apr 23rd, '09, 01:28 
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