how to make rock

trying new things is part of learning.

 

I agree but when it comes to something like this I would just get the right stuff

 

well every vidio ive seen they used more then a few lttle boxes and all they have here is little boxes

 

yea best i can find is a little box i have seen big bags at walmart the pool salt sounds good if its 99.9% pure but still its a lot of money to flush if it kills your fish but its what 10 bucks to get rock salt small boxes are better than dead fish

 

dont know if this helps or not but heres what I did

1 part portland cement

2 parts sand

2-3 parts rock salt

mix the ingredients then add a little water until thick mud texture then form

like I said I only used 2-3 boxes of salt its more then it looks like

but hey maybe pool salt will be the next big thing in rock making ;D

also i would be concerned about the pool salt dissolving before the rocks are dry

 

i have these
part portland cement
and sand

 

ace hardware has a big bag of rock salt

 

ill go there tomarrow thanks

 

What's the salt used for? Is it to make the rocks more porous by dissolving when placed in the water?

 

exactly