ISO: Water sling/pouch

I am DESPERATELY in need of a water sling or pouch. I don't mind used, even heavily used, it just needs to hold the baby in the water w/out getting waterlogged. I've got a four yo and a 2.5 yo who are really wanting to go to the pool alot and I'm sure we'll be there ALL the time this summer.

TIA

Olivia