Just a month ago a the World Championship Depth in Sharm El Sheikh I got hands-free equalisation working on the final day doing CWNF. This was the first time I did a full CWNF dive without needing to pinch my nose! It made me very happy, and the months, years of practice came together and worked on the day I could really use it.
The Israeli Freedive website [
I.F.A - Freediving In Israel - Education ] has a very nice manual on BTV :
http://eng.apnea.co.il/edu/btv_eng.doc
For clearing your tubes, the afformentioned nosewash can be a great help. But I rather would work on preventing excessive being formed in more natural way as opposed to the chemical phsudafet that btw is on the doping list.
Don't eat anything forming mucus, milk, chocolate, meat, etc.
Drink more than enough water.
Be rested.
Sniff in the air and traces of slime whilst holding the other nosehole closed.
Have a HOT shower in the morning landing on your forehead, warming up and steaming.
(after this I usually do the nosewash under the shower.)
Use the pressurepoints vertically under the eyes, just under the cheakbone to have the glands in the sinuses produces cleansing fluid, to be cleared by sniffing in.
Massage the tubes, and sinuses.
When I'm diving I purposefully not equalise my mask to much. The waterpressure helps to close my nose just a bit, giving me a little bit resistance to equalise against.
While sinking I look slightly forward, down in the abys. Though this is just a bit off the ideal sinking position it helps to stretch and open up my eustachian tubes.
For equalisation, which I do often, I have a particular combination of movements. I combine a part of swallowing movement, a little exhale through the nose and contract some muscles near the nose.
Even though I' not about to see any deep water soon, I'll keel practicing the tubes' flexibilty, movement and muscles involved. I don't want to loose this awsome gift, that allows so much more relaxation, immersion and depth.
Love, Courage and Water!
Kars.