<a href=showthread.php?s=&postid=14524788#post14524788 target=_blank>Originally posted</a> by rvitko
peder, please read the entire post, it is a temporary fix. We are changing to a bigger propeller and 18V jumper, with this solution the flow is the same and the pump is quiet. Right now you have a 42mm prop spinning at about 3900rpm, we are changing to a 45mm prop spinning at 3100rpm, flow is the same. It will take a couple weeks to get the parts to do this so for now if you cannot wait, use the 15V jumper. All you will have to do is send an email to the factory and when the parts arrive they will send them.