Simple question does any one know if the livewell pumps on a 99 ranger 518's pumps on separate fuses

I could be wrong, but I'm pretty sure they are. Your fuse box should be in the drivers side rod locker up against the front side of the console. If you pull it off there's a sticker inside showing a diagram of all the fuses as well as what they're for. My dad had one pump die on his 99 519. It was a while ago now which is why I'm not sure, but I think we got it to turn back on again by replacing a fuse only to hear that it was grinding. Anyway, that'd be the first thing I'd check. 

Thanks for the response that's what I told him if they are on separate switches they should be on separate fuses start there.

Always check the obvious first.