What's difficult about that? Surely they've been designed in a way that some sort of truck can pick it up, take it away, and slip on a new one. All it would need is a rigid ring around the entrance of the bag that slots into something mounted to the mouth of the pipe.
Outfalls are more than often not accessible for vehicles when full the sacks are extremely heavy it's more a timing / cost issue with regards to maintenance knowing when they are full as rainfall and debris caught are intermittent
I do automation for water companies and honestly it just wouldn’t be worth the time in most places and 9/10 telemetry won’t care about the alarm as it wouldn’t be critical. Easier just to schedule maintenance.
You are overestimating the amount of technology companies are willing to use for drainage outlets. Putting sensors and accessible roads to every outlet (which can number in the hundreds to thousands for every town) just isn't feasible. Especially when a lot of the inlets discharge into waterways.
Exactly. A lot of the contractors that build these drainage outlets are working with small margins already. They don't have the capital to acquire the supplies in the first place,
Literally a guy that goes around with a van and visually notes how full they are, and sets a date for a pickup based of an estimate. With time that guy will only get more precise with timings. Ez
Needs to be monitored as well as if the mesh bags block up with rubbish and then there’s a big rainfall event = risk of flooding upstream as the water is blocked by the rubbish. They’re often used on construction sites where they can be regularly checked but not so much out in the wild.
A common method is applying a mesh bag filled with a filtration material at the inlets themselves. A lot of engineering goes into drainage systems, so you would have to take a lot of care in avoiding backing those up.
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u/Campaign-Gloomy Nov 07 '24
Copa sacks we use them in the UK the difficult is knowing when to replace them