Most of the common faecal indicator bacteria are killed off rapidly by daylight. It is very important that the samples should not be exposed to direct sunlight and preferable for the bottles to be uv absorbent. It is also that that they are analysed within very specific time windows, ans similar care should be shown in the laboratory.
How do you dispose of the virkon (once it has changed colour or after every home washing?) if you are not on mains sewage. It would go through a home sewage system and then into a stream.
Hi Scott once the colour has dropped out the Virkon is mostly spent and inert so should be ok to put through a home sewage system but cautiously so I would dilute the virkon as you are disposing of it so if able leave the tap running as you pour it down the sink if not then dilute the virkon in 5 litres of tap water then pour down the sink.
Hi Ian, we instruct all citizen scientists to store the samples in the dark and out of direct sunlight this is covered in the video also thank you for your comment.
Most of the common faecal indicator bacteria are killed off rapidly by daylight. It is very important that the samples should not be exposed to direct sunlight and preferable for the bottles to be uv absorbent. It is also that that they are analysed within very specific time windows, ans similar care should be shown in the laboratory.
Should do what you can in the shade and put the sample bottle in black bag. Coliforms, E Coli etc die off very quickly in daylight.
How do you dispose of the virkon (once it has changed colour or after every home washing?) if you are not on mains sewage. It would go through a home sewage system and then into a stream.
Hi Scott once the colour has dropped out the Virkon is mostly spent and inert so should be ok to put through a home sewage system but cautiously so I would dilute the virkon as you are disposing of it so if able leave the tap running as you pour it down the sink if not then dilute the virkon in 5 litres of tap water then pour down the sink.
Does anyone take note of these comments? What I wrote is based on the published findings of the former Water Pollution Research Laboratory.
Hi Ian, we instruct all citizen scientists to store the samples in the dark and out of direct sunlight this is covered in the video also thank you for your comment.