The win puts them level on points with their hosts, with only goal difference separating the sides as they keep up the chase of leaders Shoreham, who are five points in front.
Lorenzo Dolcetti headed Chi in front and Josh Clack and Steve Hutchin made the points safe.
Check out photographer Tommy McMillan’s gallery from the match, above
Get all the local football action, including results, fixtures and tables, in the Observer on Thursday.
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