my simpson enduro 701 makes a humming noise after filling with water?

Is it making a rattling noise? if not then it could be something simple like a motor coupler most of them are made of plastic and wear out. Or it could be the transmittion which is terminal since the cost of a new one would be near the cost of a new machine. anyway if its rattling then chances are there is a problem with the tranny and if not it should be an inexspensive part and with some direction from your local service man you should be able to fix it. GOOD LUCK!!

Jason Drolet
December 2005