Post by donsimpson on Feb 21, 2007 14:15:27 GMT -5
Is there a problem if your tumbler is full of foam? My kids are tumbling some agates and jaspers (one is porcelain stone, pet wood and moss agate, the other carnelian, tree agate and tiger eye), each in their own 3lb lortone barrel. We filled them normally, 3/4 full, 4 tblspoons of 60/90, enough water to almost cover the rocks. After a day, I checked to make sure it looked like slurry was happening, and both barrels were full of foam. And I do mean full. The foam is gritty, and clearly everything is moving around while the barrel is rolling. Is this normal/ok, or has a rock demon cursed my workshop?
Last Edit: Feb 21, 2007 15:13:19 GMT -5 by donsimpson
Hi Don - I've had foamy barrels before but its never really been a problem. I did read somewhere on here that it might be to do with some organic material within the stones just reacting with the water and the motion of the barrel. I think someone put Bicarb in the barrel to reduce it but I can't remember who!!
I don`t know what causes the foaming unless it`s gas in the stones,I read somewhere on this website that you can put a tum or rolaid in with it and that will eliminate the problem. I have been running some Botswana Agate,after 7 wks. i moved them into 120/220 and i came up with the same problem they started to foam and they were in for 7 days and when i moved them into 500 they weren`t foaming any more.I don`t think there`s anything to worry about........Rocky
I must be getting old,i don`t know if i found a rope or lost my horse.
I've added baking soda to a barrel for this reason. In the end, I had to add alot of baking soda for it to make a difference. The tumble ended just fine, and the foam helped suspend the grit (or so I like to tell myself). But yeah, I've been there early in my tumbling career. Scared me to death! In fact, it was one of the reasons I found this board!
Since then, I've added Borax to every stage and have avoided the foam problem, even when tumbling material from the same "load".
I have a question here --- could it be the grit ? the only times I've ever noticed it was when the grit had completely broken down ( like micron size)--- like after a week run in the vib -- but have used a different brand of grit with the same type of rock and never get any foam ------ thought maybe it was something that was added to make the grit ------ any thoughts on this ??
just keep an eye on the bottom of the barrels...if they protrude out...add a little tums or borax...if this doesnt work you may need to burp the barrels...just like a little baby...just open the top for a little air to escape...and carry on.
as far as diff grit goes....i havent a clue...i have only used stuff from the rockshed....and had only 1 issue of gas buildup...and that was when the son added cornmeal to the barrell...at least i think that is what it was...kev.
a good friend will bail you out of jail. a true friend will be sitting beside you, saying" damn that was fun"
Could be grit contamination- could be a poor rinse of the barrel, could be organics in the rock- But it happens sometimes- as long as the barrel does not build up too much pressure- you should be ok (I too add a bit of Borax)
I can't tell if thats some Gneiss Schist, or that Schist is Gneiss. All I know is don't take it for Granite
Post by donsimpson on Feb 22, 2007 11:03:03 GMT -5
Thanx everyone for the info. I don't think it's the grit because I some other rocks in a third barrel that isn't foaming. It's not causing the barrels to protrude, so I'll just leave well enough alone.
I too have the problem with foaming. It normally isn't too bad. However, today I started the polish stage, and within a few hours something told me to check it! Good thing I did, it was bulging the bottom of the barrel and was full of thick foam. I took all the foam out, and started it again. A few hours later, I checked it again. This time the foam was thicker and again bulging the bottom of the barrel. It was about ready to explode. What on earth could be causing it? Help please!!
God of Multiple Parallel Universes Full of Rocks and Apprentice to THE ONE.
Post by johnjsgems on Aug 25, 2012 22:45:38 GMT -5
You most commonly hear of foam from new to tumbling users that just have to open the tumbler after a day. Let it run 3-4 days and you rarely see foam. The old books said to open the barrels after3-4 days to "burp" the barrel. I did this when tumbling and adjusted water or added grit at that time. If you measure grit ( I never did) and start with water right and barrel properly loaded you can run 7-10 days before checking. Hard to be patient.
drocknut: The weather guessers are predicting possible triple digit temperatures by the weekend here which is way too hot for here. I'm not going to be a happy lady if I have to work in the heat.
Jun 25, 2015 23:02:24 GMT -5
Fossilman: As of today we are busting the triple digits too,been the high 90's for a few days..Going to be some record breakers this summer..
Jun 26, 2015 9:20:30 GMT -5
mr.mohs: it to hot to rock that's the worse of it- otherwise stay cool by posting on RTH with all my rock pals...mostly
Jun 26, 2015 11:45:44 GMT -5
snowmom: 48 degrees here at 4:57 AM, high of 72 predicted for the day. you all come hang out here any time you want!
Jun 28, 2015 3:58:46 GMT -5
drocknut: Snowmom I'm on my way
Jun 28, 2015 7:44:43 GMT -5
mr.mohs: it 72 degrees & 5 o'clock somewhere in the world at all times...but the odds are against for awhile here... mostly
Jun 28, 2015 13:12:25 GMT -5
Fossilman: I'm ready for some 60 degree weather-hell with this hot crap!!!!
Jun 29, 2015 9:44:01 GMT -5
mr.mohs: ouchiemama! I just picked up a plastic bag of rocks and a chunk of gem silicia just smashed by big toe!
Jun 29, 2015 17:07:54 GMT -5
jakesrocks: LOL. Cut its heart out Ed.
Jun 29, 2015 20:00:11 GMT -5
mr.mohs: Luckily what I was looking for wasn't in the bag. A chunk of B.I.F. Higher specific gravity...
Jun 29, 2015 22:34:35 GMT -5
mr.mohs: go ahead guys-- don't be shy--- let the other rock drop
Jun 30, 2015 16:50:48 GMT -5
jakesrocks: Change sides with the plastic bag, so you end up with a matching pair of toes.
Jul 1, 2015 12:41:50 GMT -5
mr.mohs: ha ha Don! can always depend on you to let the other shoe drop... next time I'll wear steel toes
Jul 1, 2015 17:20:08 GMT -5
jakesrocks: Or at least put your rocks in a bucket.
Jul 1, 2015 18:01:47 GMT -5
drocknut: Just don't put all your rocks in one basket, that would break the basket for sure.
Jul 1, 2015 18:25:55 GMT -5
mr.mohs: and when a basket of rocks break its an OchieMaMa for sure
Jul 1, 2015 19:10:49 GMT -5
mr.mohs: that is wise advice tho don't put all you thunder eggs in one basket...mostly
Jul 1, 2015 19:16:42 GMT -5
Fossilman: LOL,my thundereggs are all over the yard in buckets.....
Jul 1, 2015 19:47:19 GMT -5
mr.mohs: a-tisket a-tasket --got all my rocks in a basket --handle breaks now my toe aches...poetry by mohs
Jul 1, 2015 21:12:33 GMT -5
Fossilman: Ok-give me some 60 degree weather!!!!! I HATE HOT!!!
Jul 2, 2015 9:24:14 GMT -5