mgroothuis
starting to spend too much on rocks
Member since November 2022
Posts: 167 
|
Post by mgroothuis on Feb 23, 2024 12:22:36 GMT -5
I just finished up my Rock Shed 120/220 and it's as expected: pretty gritty and slightly finer than my 60/90. However, I opened my new KN 120/220 grit and it looks drastically different. It looks much finer. I wish I could compare them side-by-side. Does this look normal? It almost looks like 500. The bag did read 120/220.  |
|
|
|
Post by chris1956 on Feb 23, 2024 13:15:46 GMT -5
How long did you run it for?
|
|
stefan
Cave Dweller 
Member since January 2005
Posts: 14,113
|
Post by stefan on Feb 23, 2024 13:19:55 GMT -5
500 looks like finer powder. This looks like 120/220 to me
|
|
mgroothuis
starting to spend too much on rocks
Member since November 2022
Posts: 167
|
Post by mgroothuis on Feb 23, 2024 13:25:54 GMT -5
How long did you run it for? This photo was taken just after I added the 3 tbsp. I hadn't run it yet. |
|
mgroothuis
starting to spend too much on rocks
Member since November 2022
Posts: 167
|
Post by mgroothuis on Feb 23, 2024 13:28:49 GMT -5
500 looks like finer powder. This looks like 120/220 to me That's where I wish I could take a photo of the two side-by-side. This seems so much finer. I've never had grit "melt" into the top of the rocks and wick up the water until it looks like a grit paste sitting on top. Kind of hard to describe. It may work fine, it just looks totally different. |
|
hypodactylus
spending too much on rocks
Member since July 2021
Posts: 478
|
Post by hypodactylus on Feb 23, 2024 13:32:30 GMT -5
500 looks like finer powder. This looks like 120/220 to me This. It is a little tough to tell from the photo of wet grit, but your grit looks more grainy (like 120/220) and less powdery (like 500). Keep in mind that 120/220 is 'ungraded', covers a range of grit sizes, and has the potential to vary from batch to batch. Maybe your Rock Shed batch was more concentrated near the 120 end of the spectrum and your Kingsley North batch is more concentrated towards the 220 end of the spectrum. |
|
mgroothuis
starting to spend too much on rocks
Member since November 2022
Posts: 167
|
Post by mgroothuis on Feb 23, 2024 19:00:19 GMT -5
It is a little tough to tell from the photo of wet grit, but your grit looks more grainy (like 120/220) and less powdery (like 500). Keep in mind that 120/220 is 'ungraded', covers a range of grit sizes, and has the potential to vary from batch to batch. Maybe your Rock Shed batch was more concentrated near the 120 end of the spectrum and your Kingsley North batch is more concentrated towards the 220 end of the spectrum. Yep, I think this is what is throwing me off. Here is a photo of Rock Shed 220 graded next to the KN 120/220. The KN is still slightly more fine than the 220, but visually similar grain size. I agree 500 was a little too extreme of a comparison.  |
|
