I’m not all that knowledgeable on unloaders but I don’t think it has much to do with wearing them out. They aren’t made to adjust pressure. That’s what nozzle selection is for. If you’re not careful not only can it cause damage to your pump it can also be dangerous. Set the unloader to where it’s only bypassing a trickle of water and leave it be. Be sure to have the appropriate nozzle when doing so.
One thing I remember reading is that unloaders regulate pressure they don’t make pressure. Pressure needs somewhere to go when you let off the trigger. The unloader is what regulates that pressure and sends it to bypass. Without an unloader the pump would be trashed. You don’t want to mess with something that prevents a pump from blowing up.
If you don’t have the proper nozzles wait until you get them. You’re only talking a few business days to have some delivered.
