Sorry if this is the wrong exchange, if it is could you point me in the right direction that'd be awesome!
I have a bit of a problem locally that I think there could be a simple solution that we're not seeing. I'm part of the local volunteer group that cleans the river running through the town but a lot of rubbish is thrown in. We have litter pickers to get the close bits and what is in the weeds, nets to get the closer litter that floats on the surface, and hooks to try and get the heavy items out from under water, but that's where the problem is.
A lot of the items that get thrown in take a lot of energy and time to get out. They may include things like shopping trolleys (carts), we recently pulled out part of a car exhaust, car and bike tires, large metal or wooden poles, children's toys, chairs, wrought iron bench ends, and so much more! On the edge of the water there are thick reeds to promote biodiversity in the river, and wooden beams to support the bank. The hook very often gets caught on these and gets stuck, meaning we have to put our selves in danger to free it. I would happily jump in the water, because hey its just a bit of water, but the medical team that follows us has strongly advised us not to as there are a lot of rodents around and we could contract diseases such as weil's disease. The hook we use is attached to about 5 meters of rope which allows us to throw the hook in and attempt to catch the items, but if we miss then we just have to keep trying.
I have thought of a potential solution to this that may help. We use one or two people either side of the river who hold a guide rope which the hook is freely attached to. Each side then has a rope attached to the rope so that they can pull the hook across the guide rope. The guide is lowered into the water to hook the item and then the attached ropes can be pulled to pull the item out. If the hook or item becomes trapped or free we would simply pull the hook in the other direction to reattach or free the hook again. A model of this is also attached below.
What are your thoughts on this? Could this be a valuable solution or am I just getting it completely wrong?
Thanks in advanced, Shaun.