22 replies to this topic

[noebl1]

Yup. Wherever the water is transferred, you will see the missing Hydrostone. Usually the other material will leave an imprint like in your picture.

 BIngo, was the imprint of the sponge.  

[dspdrew]

I finally removed this block of Hydrostone from the tub of water about 2 months ago. Once the tub was dried completely, you could see how much Hydrostone was left behind.

 

 

 

As member="drtrmiller" suggested, I just weighed the tub, and then weighed it again after cleaning it out and drying it completely again.

 

There ended up being a total of 28.3 g of Hydrostone left behind. Given the weight of the original block, only approximately 1% of the Hydrostone dissolved in a little less than a year. There is obviously still another factor involved, because when the water transfers between Hydrostone and another material, the impression left behind in the Hydrostone as was discussed by some here and in some of my formicarium threads, is clearly a lot more than 1%, and it happens in a relatively short amount of time. I'm sure the movement of the water has something to do with it too, but I highly doubt that moving water alone would do what the transfer of water between the two materials does.

[Martialis]

I wonder how it would hold up to organic solvents like acetone.