The time has come to fill the Afon Cwm Cloch.
This is one of the major scenic features on Bron Hebog.
It runs the full depth of the layout with the railway crossing over it three times as it winds its way up / down the long S bend.
Himself has decided to use some gloop called Realistic Water and I'm given to understand it's been a venture into the unknown with a lot of trial and error involved.
Firstly it would appear the river bed is porous in places because some of the stuff is leaking out before it sets - destination unknown!
Then the actual cure time as been causing much consternation.
If it is poured to a depth of 1/8 of an inch it stubbornly refuses to set, so little and often appears to be the key.
Of course it's possible that the ambient temperature at this time of the year in the UK is a factor but having not used the stuff before it's hard to tell.
Hopefully it will all be dry / set for the next exhibition appearance in a few weeks time!