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[Viral_Jim]

Apparently a light misting of water helps with the curing process...

Sounds ideal really 

[dave the builder]

It's not UV stable
It is a good product for some situations ,this DAM leak is not one of them 

sticking plasters on the outside of a leak rarely ends well
I'm sure there are plenty of engineers on the case now with a plethora of new products to try use successfully 

 

[Varche]

It's not UV stable
It is a good product for some situations ,this DAM leak is not one of them 

sticking plasters on the outside of a leak rarely ends well
I'm sure there are plenty of engineers on the case now with a plethora of new products to try use successfully 

Not wanting to rain on your parade ( or whatever the expression is!) but is there actually a leak?  Just a bit of concrete crumbling a bit because the dam was full to overflowing.

A lot of foam, rebar and some caucho over the top and job jobbed.  The hard work has been done by helicopter men. These engineers will just come up with some great costly scheme that will cost twice the agreed budget to implement

[dave the builder]

But under the concrete slipway is just ground that will erode very quickly
needs draining down enough to engineer a strong concrete slipway and puddling clay inside ,deep enough so the water does not go under the slipway
water will find it's own level,it will sneak through the smallest of gaps and carve a bigger path over time.
sand in the bags that Boris did will not last 
a missed small scale hydro-electric  power opportunity on the long term solution too  i'd imagine 
 

[Varche]

HEP. You have persuaded me.

We live near a huge 10 mile long lake and it has a hydro electric power station. Quite small as it is sized for minimum flow throughout the year

[Rods2]

It must be a bit of a shock for the RAF, being brought in to stop the breaching of a dam instead of creating them.