Washfold sump levels

[Babyhagrid]

Whilst down washfold today we noticed the sump levels rapidly drop by about 0.75m in the 10 mins it takes to have a chat , eat a chocolate bar, and talk about leaving the cave.
Is there any way this sump has a periodic siphon or silt dams that may have broken?
Any ideas from cavers or divers who knows this cave well?

 

[alexchien]

Having dived here in the past, I know the sump fairly well. It is perched. When you surface at the far side there is a 5 - 6 m drop immediately after. So, maybe there was a temporary blockage at the pitch head which collapsed whilst you were there. ?
Never saw it happen whilst I was in there.

 

[Alex]

Can that blockage be removed, draining the sump and giving "dry cavers" a bit more cave to go at?

 

[Lankyman]

What's it like beyond the sump? My old copy of NC 'Ingleborough' (1981) ends there. Does it drain to the same risings as Alum Pot etc?

 

[samueld]

Looking at the old CDG newsletters it looks like it drops into a chamber on the far side and then into another (longer, deeper) sump not far beyond

 

[Lankyman]

Looking at the old CDG newsletters it looks like it drops into a chamber on the far side and then into another (longer, deeper) sump not far beyond

According to AI: ' ... Washfold Pot drains beneath the river to Turn Dub and is part of the same hydrological system as Great Douk Cave'. Obviously, there's plenty of untapped potential there ...

 

[ChrisB]

According to AI: ' ...Washfold Pot drains beneath the river to Turn Dub and is part of the same hydrological system as Great Douk Cave'

Aren't Large Language Models clever!