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About Me

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  1. A long long ago I said I might do this and finally decided too. For reference I perform structural engineering for money 5 or more days a week. Abstract and conclusions are listed below and attached but I will link the full check. This analysis was performed using the 2015 International Building Code and the American Society of Civil Engineers spec 7-10. A simple overturning check was performed to determine the shelves probability of collapse compared to building structures. Due to the low risk to human life, an overturning FS = 1 was used and tank sloshing was assumed to have negligible effects. For reference the 2015 IBC ground motion maps incorporate “a target risk of structural collapse equal to 1% in 50 years based upon generic structural fragility”. So it may be the case that even in areas of higher risk the probability of tank stand collapse within a lifetime remains low. See risk maps located on page 5. https://forum.aquariumcoop.com/files/file/26-seismic-analysis-of-the-standard-concrete-block-and-2x4-tank-stand/
  2. The house I live in once belonged to my grandparents. My grandfather was a brick mason, and in the 50s he built a brick/concrete/stone fish pond in the backyard. Over the years it has had to be cleaned and re-sealed every 3-4 years. The last time it was done was 2017, and it is leaking at an increased pace now, so I'm gonna have to do it again in the near future. In the past, he used a white fiberglass-infused concrete. It worked well for a while, but eventually would need to be redone. I'm curious if there's something else you all would recommend for sealing this? I've looked at Pond Armor, Herco H-55, and Liquid Rubber NeoPond sealant. I had one local store tell me he'd probably just use Flex Seal. Everyone suggests a liner, but because of the fountain in the middle and the irregular shape jutting out at one end, it would be almost impossible to use a vinyl liner without owning a tool to sonic weld pieces together to fit around, so I think I'm going to be stuck with some type of roll/spray on sealer. By my math (Thanks, Fusion360), it's around 240sq ft of area that needs to be coated. Have any of you used any of these products before, or what would you recommend.
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