Did you know that the HydraSleeve can be used simultaneously with other sampling devices to provide additional sample volume or for comparison purposes?
Using the same tether, a HydraSleeve may be suspended about a foot below a Passive Diffusion Bag to obtain a whole water sample for contaminants that cannot be sampled with the PDB (inorganic compounds, semi-volatiles and MTBE to name a few). When the PDB is recovered the HydraSleeve fills as it is pulled through the same zone that was previously occupied by the PDB, thus providing a whole water sample from the same vertical interval in the well screen. The HydraSleeve can also be attached in the same fashion beneath a Snap SamplerTM or any other passive sampling device.
Pictured here is the HydraSleeve hybrid sample string using a Passive Diffusion Bag on top and the HydraSleeve on the same tether below.
If portable low-flow sampling or volume purging with a pump is being used, a HydraSleeve can be attached a foot or two below the pump ; or in the case of a peristalic pump, the bottom of the intake tubing; and recovered as the pump or tubing is retrieved. It will fill as it is recovered and provide a post purge sample from the same sample interval, which can be compared to the low flow or purged sample.
Or, to make things as simple as possible, you could just use a large enough HydraSleeve to provide adequate volume for all your sample requirements. The HydraSleeve provides the largest volume of sample at the lowest cost of any currently available no-purge/passive sampling device.
HydraSleeve - Simple by Design