Solinst 428 BioBailer marine cable Requires pH buffer solution for

Requires pH buffer solution for calibration

when the probe tip contacts water

Also available as a self-stirring ProBOD probe for lab BOD testing

1/2" x 5/8" discharge tubing

Solinst 428 BioBailer marine cable Requires pH buffer solution forThe Solinst 428 BioBailer is a single use, clear PVC grab sampling bailer with a tapered top and bottom to resist snagging in the well, and a molded handle for attaching a suspension cord. It is lowered below the water table, fills as it descends, and is hauled back to the surface holding a trapped column of water. Because the PVC formulation is dense enough to sink on its own, no added weight is typically needed. At the surface, the sample is