Pond Boss Forums STOCKING A NEW POND Types of fish to choose On Mutt Pond

When you bubble water into a bottle it diffuses extra oxygen into the sample. I am not sure how much DO in ppm is added to the water when water is bubbled into the collection jar. Ideally the water is supposed to be collected with a device (Kemmerer or Van Dorn sampler) that underwater it entraps water & a 'messenger' on the rope closes the container. Sampler is then raised to the surface and water is let out the bottom through a tube into the measuring or testing container. Water is filled into the testing container from the bottom to the top and overflowed. The process minimizes water contact with air.

If the sampling bottle is held side wise and water is gently drained into the bottle without bubbling, this should provide decent results.