Blocked stormwater drains

[Dinger64]

Has anyone ever used any company who carry out CCTV and unblocking drains. I am not sure where some of the drains go and there is too much water getting in to my slurry tanks

 

[Mur Huwcun]

Use some dye to find where some of them go?

 

[Wurzeetoo]

I’ve used them on a retail site. Only advice would be find a friendly one and tie them down to hourly charge before they start some companies charge a ridiculous cctv charge