DIY Frag disks

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Daddy-o

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My son and I use a ton of frag disks. I find that I am paying about 40 cents a piece for them. While thats not bad for your average hobbyist, when you use 40-50 a week, it starts to add up. I have been reading that if I use Quickrete Hydraulic cement, I dont need to cure it for 6 weeks?
We did a couple of test batches with cement we had laying around. I mixed 4 parts cement, 1 part ground Oyster shell, and 1 part coral sand. We poured a line of it onto an old black garbage bag and rolled it up like a 3 foot long burrito. After it set, I brought it to the tile saw and got 75 disks from it. I would say the cost is about a penny a piece.
So the regular cement needs to now cure for a long time. But the hydraulic doesnt?
Cheers! Mark
Any input is greatly appreciated.
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i would run in bucket of saltwater for a few days w phead just in case any leaching of"i don't know" just to be on safe side ;)
 
You can buy plastic ones for pennies. seems like a lot of time/work for frag disks?:oops:
The plastic ones blow around in the frag tank. And there is a pandemic, so I have a lot of time.
 
i would run in bucket of saltwater for a few days w phead just in case any leaching of"i don't know" just to be on safe side ;)
Yeah, I have a 50g barrel in my yard that the RODI pumps reject water into that I use for my garden. I was thinking I would just toss a basket (or 2) of them in there. I empty the barrel almost daily.
Cheers! Mark
 
Thanks for sharing! Where's all the frags for sale?? Always have room for something new.
 
Thanks for sharing! Where's all the frags for sale?? Always have room for something new.
I am the farmer and my son has started doing the sales.
 
Mortar or Hydraulic cement?
I used the hydraulic for my rock scape, granted I was still refinishing my stand when I built my scape, so had extra time (about 2 months) to cure my rock, however, 2 weeks would have been sufficient to cure. I cured mine in saltwater in a brute can with an extra gyre I had. At around 2 weeks it had changed from a dark gray to a light gray, never got any abnormal test readings on water either...was expecting higher po4, but never saw a spike.
 
Ran out and picked up a 10 pound bucket for $8
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Mixed up a quick batch with 3 parts cement and 1 part oyster shell/aragonite sand. Plopped it on an old garbage bag and rolled a bit. It is not perfectly round, but I prefer it a little asymmetrical. This will yield approx. 70 - 2 inch disks. Total time 10 minutes and about $1. Once it drys a bit, it will be off to the tile saw to slice it like a baguette.
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