We have a Britax Marathon seat. My 18 month DS gets violently carsick (that's a long story for another post) and on Saturday night we had a terrible incident. He threw up so much he was literally sitting in a puddle inches deep because it was straight liquid. The carseat straps were completely saturated in several spots. I've read before that you shouldn't get the straps wet and I've always sponged them clean but what now? Is the seat still safe even though the straps have been saturated with liquid in multiple spots? I'm fine with buying a new seat if that's what's needed but I don't want to spend hundreds of dollars unnecessarily either. What do you think? Thank you!