The Mereless Gill

[Samouse1]

I haven't been down Meregill for years. Does this suggest that the mere water has another alternative route to God's Bridge other than the 'normal' way?

Yes, it definitely flows away down at the bottom there. Obviously there's some restriction that causes it to back up until it overflows into the "main cave"

 

[mikem]

Probably a series of restrictions, that mean it doesn't always perform as expected

 

[Lankyman]

Yes, it definitely flows away down at the bottom there. Obviously there's some restriction that causes it to back up until it overflows into the "main cave"

I wonder, has the flow been tested? Obviously, God's Bridge has to be the ultimate destination but does the water re-enter Meregill lower down or find a totally independent way through? It's very difficult solving this from my armchair!

 

[langcliffe]

I wonder, has the flow been tested? Obviously, God's Bridge has to be the ultimate destination but does the water re-enter Meregill lower down or find a totally independent way through? It's very difficult solving this from my armchair!

There are no obvious significant inlets (apart from Black Shiver) before the sump. Whether it joins between the downstream sump and Roaring Hole is another matter.