shim tank vs. stand

[rxinc]

I just put in my 225 gal. glass Oceanic tank, the wood 2x6 stand was level before setting the tank on, but now the left front edge of the tank is raised slightly off the table .

It would be very easy to place a shim under that corner of the tank instead of trying to shim under the stand that has the tank now on it.

Anyone think that is a bad idea???

 

[Fiziksgeek]

Since its an Oceanic tank, the tank really rests on the tank trim. This means its safe to shim the tank itself. Just put several shims in to fill up whatever space you can.

 

[cybertec69]

Re: shim tank vs. stand

<a href=showthread.php?s=&postid=8420783#post8420783 target=_blank>Originally posted</a> by rxinc
I just put in my 225 gal. glass Oceanic tank, the wood 2x6 stand was level before setting the tank on, but now the left front edge of the tank is raised slightly off the table .

It would be very easy to place a shim under that corner of the tank instead of trying to shim under the stand that has the tank now on it.

Anyone think that is a bad idea???

depends how much shimming has to be done, don't forget, shimming can cause pressure points, which is NOT a good thing.

 

[Gwalker]

You should never shim the tank, always shim the stand. The gap is due to the wood of the stand conforming to inconsistencies of the flooring under the weight of the tank. The glass tank will not "bow" like the wood stand will. With it not supported correctly it is under stress and will eventually led to cracking. The stand needs to conform to the squareness and level of the tank for uniform support. If you shim the tank it will lead to pressure points as stated above. Trim on the tank is not designed to support the tank with these inconsistant pressure points.


G.

 

[nyvp]

i'm going through shimmimg my tank atm . ive done it 4 times so far its not fun trying to get 2000lbs up and down

 

[MammothReefer]

did you put foam down?

 

[nyvp]

me??? yes

 

[smcnally]

Shimming the tank itself is asking for problems. You not only cause stress points on the glass, but you can also cause a seam to blow out. I would shim the stand.

 

[rxinc]

I shimmed the stand but still a gap at one corner - I think the 3/4 " plywood top might be a little warped at that spot.

Now what - I really can't remove the tank and put another top on. ( cost me 200.00 to get it moved into my house)

I didn't use any foam.

So I shimmed the tank on the left side as well, it took 8 one inch width shims ( lined up next to each other, not 8 stacked) that only go in maybe an inch or so - to under the oceanic bottom rim.

The tank is perfectly level, the tank is now supported - so why is this putting stress on the tank???

Any suggestions would be appreciated. Thanks.

 

[smcnally]

<a href=showthread.php?s=&postid=8431898#post8431898 target=_blank>Originally posted</a> by rxinc
The tank is perfectly level, the tank is now supported - so why is this putting stress on the tank???

Any suggestions would be appreciated. Thanks.

It probably isn't. I wasn't aware the plywood was warped like that. It that case you would have to shim the tank to fill the gap. I thought the tank was just out of level.

 

[matt & pam]

Can you shim underneath the plywood under the tank?

 

[rxinc]

Can you shim underneath the plywood under the tank?


Good idea, I think I can slide the tank over enough to maybe loosen a couple of the screws that hold the top to the frame.... I will give it a try.

- The tank is in a very tight corner are of the fam. room so big moves are too hard for just me and my wife.

I don't like the shim job I did before anyway, so I took those out and will have to do something better since it is the family room and leaks / seam busting can't be a possibility.