would th esand imn th esand box not contain the silica that you wish to avoid?
Not much sticks to the cement - but it is another reason that you don't want your mix to be too sloopy. I started with smaller batches until I got the hang of it.would th esand imn th esand box not contain the silica that you wish to avoid?
$12.79 for 88lbs at Home Depot, don't think I can even lift it!Step 2: Portland cement. This will permanently bond the rock together. Use regular or white if you can get it, but it doesn't really matter. Once again, a 50 lb bag is more than enough, as you will only use about a third of the bag. See if you can bum some off of a bricklayer buddy of yours Otherwise it's about 10 bucks or so a bag.
Sorry, my memory was a bit off. Bummer is, you will only need a third of that bag (or less) to go with a full bag of crushed shells. Maybe find someone else and share a bag!$12.79 for 88lbs at Home Depot, don't think I can even lift it!
I think that GARF already does this on a commercial scale. But I'd personally not do it for sale- though it was fun to make them, and I would definately do it again if I ever get a bigger tank, it was a lot of work. Fun work though, something nice to do with the kids on a Saturday afternoon or something.It would be nice if a group of people got together to make a big batch of this, and maybe sell it for a low price?
Edit- sorry just saw 30 days.you need to cure it for some time to reduce that corrosiveness
Pacman: To give it holes and make it more hollow/pourous
Huh, that's pretty smart (if a bit gross sounding ), certainly saves on water. I suppose you could also soak driftwood like that.For smaller pcs we put them in the toilet tank as this continuously flushes the water then on about day 21 we move to RO/DI water for a week doing daily water changes.
remember driftwood leaches out a yellowish tea colour anyways... so new water might look like what you flushed down...Huh, that's pretty smart (if a bit gross sounding ), certainly saves on water. I suppose you could also soak driftwood like that.