You’re right, water levels were high on Saturday. I went in Yordas Cave with my 2 kids and the waterfall was in a rage. Some bloke (BPC I think) was descending the middle entrance trying to find his kroll! (??)
Regarding the sump/Portcullis in Dis, there is a small cut out in the roof that you can’t immediately see when you first look in. Also, the Portcullis requires a full submergence even in lower water (or it has on the 4 occasions I’ve done it) so a neoprene hood is useful.