MY 300+ GALLON BUILD

  • We are currently upgrading MFK. thanks! -neo
I touched up the hole and a few other spots i didn't like all that much and let it dry for a few more days. then it was time for test two once again i did it to the top right a way which i think is one of my down falls. the tank must of settled wired or something because i herd a pop and then a hour latter a little puddle :cry:. this time a part of the bottom cracked and there was a couple small stress cracks in the pond shield on the inside. this was yesterday so now i need to dry it and figure out a plan of attack, i do still have a little pond shield left that i have been saving but this will be the last of it.

I'm open to ideas

First pic is a little water i found
Second pic is the crack on the bottom (the tank is laying on its side)
Third is one of the crack most is sand marks i didn't fully cover from the other patches but the big one in the middle is a crack

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The tank is painted black on the out side mostly for waterproofing any were that didn't get resin. we then glued 1/2" foam to the side and back and the tank sits on a piece as well, we glued it before putting the glass in , in the hope we wouldn't have to move it as much after wards. the foam is to help with insulation i have siding and trim for the stand and tank just need to figure out these leaks. On the first test fill it did bow a little but only in the middle back wall but it was just a little had to look real hard to see it
 
I'm looking for ideas, suggestion, advice any thing that could maybe help solve my leaks.

like what if i use a lower density foam on the bottom?
 
Well, since you know you have at least 1 current leak, and one previous leak, I would suggest filling it all the way up and seeing if you can find yet another. I would hate to go through the process of finding 1 leak each time only to go through the whole process over and over again.
 
Clay;4362205; said:
Well, since you know you have at least 1 current leak, and one previous leak, I would suggest filling it all the way up and seeing if you can find yet another. I would hate to go through the process of finding 1 leak each time only to go through the whole process over and over again.
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That would be one idea but i don't want my wood to swell and ruin everything. so i drain it ASAP when i find a leak.

BadOleRoss Coat the entire inside of the tank right up to the silicone around the viewing window with liquid rubber ( zavlar). You have cracks in the structure, unless you start over you are not going to get a seal with pond armor IMO. Liquid rubber will seal the tank and flex in area that are,well, flexing.
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Thats what i'm thinking needs to happen but i'm trying to avoid going that road. i have one last try with the pond armor then if it fails i'll try to go over everything with liquid rubber. i liked to idea of the liquid rubber but when i was in my planning stages and ordering products You were still having problems with sealing the window so that turned me away. glad you got it solved


And thanks to everyone else for the comments
 
this is a great looking build and cool filtration design. bummer you keep finding leaks. after my build i really noticed how forgiving zavlar is. i had plenty thick wood but some of it was warped a little and when i filled it up the wood flattened out and the rubber held just fine. IMO i would think you would only need a gallon of zavlar (50bucks plus shipping) because your tank is pretty much sealed besides some small cracks. this stuff goes along way and you wont use a full 5 gallon bucket on this tank even if you tried and were determined to lol
 
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