Cant find a link but heard on the wireless this morning that leaks in the water system are running at 45%? that is crazy.
Here’s why:
dublincity.ie/WaterWasteEnvi … akage.aspx
When they say “pre-1940s”, what they really mean is 50% of the pipes haven’t been replaced since Victorian/Edwardian times, and are thus riddled with rust. Great to see the money of the “celtic tiger” years was spent on great infrastructure projects like … oh wait.
2 severe winters back to back has probably done a lot of damage to an infrastructure that has barely been maintained for years.
Bring in water and sewerage service charges and charge the water service provider (in this case the councils) the difference between the water that the consumers and government departments use and the water that leaves the reservoir. That way there is a price on water and the service provider has an incentive to fix the leaks, conserve water and bring costs down rather than use it as an extra form of revenue while neglecting to maintain the infrastructure.
agreed
I had a summer job at a county council when I was a student, in the water leak department. Was run by one graduate engineer. We spent the time going out with equipment looking into reported leaks. One leak was unreal near Manooth. this persons house was flooded, as in the garden and house was under 6-7 inches of water. we traced the leak to up the road and got it fixed. however we spent the time fire fighting, i.e. running around after reported leaks from the public. The rest of the water “department” spent time out on “site” where they used to arrive back on a friday afternoon. I got bollocked for handing out the mobile numbers of the water engineers to other departments, as "these phones were only for the water department to phone each other…
The water department needs to be farmed out to various operators who need to ensure a good service to allow to make a profit.
There’s a very large reservoir Stillorgan that services a lot of South Dublin I believe. Anyway beside the reservoir is the Luas Sandyford depot and not too far away runs the DART line.
The related pipeline network in the vicinity of the reservoir in particular will have been subject to a lot of stray current interference from the DC power supplying the two systems particularly the DART for the past number of years. This more than likely has resulted in corrosion at indeterminate locations along pipelines and is a ticking timebomb.
the dart is a mile and more down the hill from that reservoir. yes the LUAS is next door.
Stray current can have an influence up to several miles away. The Luas is a floating system while the DART is earthed hence it would have a greater effect. Also, the DART was installed at a time when stray current wasn’t regarded as a serious issue and so would not have any significant mitigation measures in place.
‘Stray Current’ as a cause of leaks?
Shocking!
Enlighten us on the science, somebody please, and is this in anyway significant to the current(!) state of chassis?!?!
It is more like secondary school thing then some advanced science, but you know what - it is actually very easy to verify yourself, see this experiment:
youtube.com/watch?v=XJyTlKRLTtM
tis why we put sacraficial anodes on subsea equipment
I think this is a step towards that, or at least farming out and consolidating functions from a number of LAs.
A few years ago I passed daily a leak pumping out onto the street. I rang dublin city council about it, they said they knew but they were scheduled to work there 2 weeks later anyway so they were going to wait until then
work smarter, not harder
OT but :
I know of a case where a farmer had significant problems with dairy cattle as a result of current leaking from neighbours incorrectly earthed electricity system. The poor cows were getting mild shocks and their milk production was badly affected.
The ESB & neighbour had a case taken against them which was settled in the farmer’s favour just before it was listed in the High Court
ive seen this first hand, they are very sensitive to electricity
Pull the udder one!
Stray current from DC systems manifests itself in two forms of interference on buried metallic structures Anodic interference and Cathodic interference. Where cathodic interference occurs, the current enters the pipeline and you can actually get reduced corrosion. Where anodic interference occurs current leaves the pipe and you get accelerated corrosion.
It’s not really related to the trains chassis. It’'s more to do with things like the rail conductance per km, rail to earth resistance and the proximity of the DC substations to one another.
Down the drain: what’s going wrong with Ireland’s water supply? - Kathy Sheridan → irishtimes.com/newspaper/wee … 92855.html
Ah fuck