I've been waiting months for the WJ operator to do this for me, the works machine (a BYJet Smart 3015) has been in almost continuous use since its £17,000 service in the summer. (not cheap things to run)
Although I didn't get wet while this part was made , I was soaked and covered in mud while making a venturi pump and filter to keep the machine clear of garnet build up (I'm owed some 'homers'!).