Alton took a step closer to claiming the league title with this victory at the bottom club.
Skipper Nigel Downing soon slotted home to put the visitors ahead. Defender Jonny Dane then waltzed up the pitch to slide in their second.
Before the interval they added two more goals through Stuart Gagen and Dan Trim.
After the break Gagen scored his second, and with time running out youngster Jack Hawkes broke free from his marker to squeeze home Alton’s sixth from a tight angle.
With Poole losing to Aldershot & Farnham, Alton need just three points from their last three games to win the Hampshire League Division 3.