B&Q if you can ditch shitter,if it does break within the year, theyre brilliant at taking things back ,i had a chainsaw from them, knackered it ,cutting railway sleepers,feck theyre hard work,then took it back with the receipt ,swapped it, no problem at all.I dont know if its any good to ya, but i always run the string line, then spray some paint down the line then wrap youre line back up ,perfect marker,no cuttin string or fouling up youre trimmers.