We used them for the first time this weekend. They have a eurovalve ob them.
But it seemed the minute you removed the pump from the nozzle they started to deflate very quickly.
We were using a battery pump as dp thought it was a car one.
But they deflate in matter of seconds once you remove the valve.
I didn't have to squeeze any air out of them they were flat pretty immediately when we packed up!
Are we doing something wrong
TIA