Here's something that's worked for us a while and with good results. Get a shop vac. and put the hose to outlet and duct tape it or wedge it in good, then the other end stick it into your breathables and tie an old bungee cord around it. Get a spray bottle with dish soap/water mix, car wash soap, or any type of liquid soap that suds up good, turn on the shop vac. and leave it on and watch your waders turn into something you'd see in the Macy's day parade. As it is inflated by now, don't over do it and let some of the air escape,(just adjusting the flow into the waders with the bungee cord), and spray into the area(s) that were wet from the last time and it'll start bubling up. Sometimes for very slow leaks ya hafta let it sit with soap for a while. Hope this helps.......

Robert