DNA disposal ?

[Terry Achey]

How do you dispose your DNA solution? I don't know if my DNA "dip" is water logged yet to the point of being ineffective, but I know at some point I'll need to get get rid of the brew and start a fresh batch.

I've been using a two gallon batch for about 6 bowls know. I know there is a method to measure specifc gravity and calcuate the actual moisture content, but the process requires an investment in accurate scales and, frankly, too much math for my liking. :D I think it's simpler (okay... easier) to just refresh periodically.

Thoughts on disposal method?

Terry

[Mike Henderson]

The majority of DNA is ethanol with a small amount of methanol thrown in to denature it. You can put it anywhere it will evaporate. You could probably throw it on the lawn but I never tried that.

Mike

[Bernie Weishapl]

Terry I have run about 20 bowls thru mine and I just add a gallon when I think it needs it. When I did change mine a year ago I just sat it out with a bucket and it just evaporated.

[Terry Achey]

Thanks, Mike and Bernie. Sounds like I can top it off for quite a while yet before I let it gas off.

Terry

[Don Eddard]

I've had a few gallons of DNA going for a couple of years in a sealed 5 gallon bucket, and have probably added 5 or 6 gallons to the bucket over that period of time. I'm pretty sure I'm replenishing the alcohol faster than the water is significantly diluting it.

[Gary Max]

I used mine as a lighter fluild for the woodburner in the shop.

[Frank Kobilsek]

Terry

My Test: I flick some from the DNA soak pail on to the conrete floor of the shop. If it doesn't dry up in about 1/2 hour it needs to be dumped and replaced. A five gallon pail lasts me most of a year. It takes maybe 2 gallons to make the intial fill of my container, then I add as needed.

Disposal: Pour it on the burn pile or on the gravel section of driveway to evaporate. It is not very flamable when it is ready to be disposed of.

Frank

[Mike Ramsey]

I pour it on my burn pile, but I live out in the sticks where this is allowed.

[Lee DeRaud]

I know there is a method to measure specifc gravity and calcuate the actual moisture content, but the process requires an investment in accurate scales and, frankly, too much math for my liking. :D Wouldn't think you'd need scales: one of those cheap widgets (hygrometers?) used to test batteries does the same thing. Just get a reading from pure water and another from fresh DNA to calibrate it.