Pool power on as Lamb fleeces Porth.
Welshpool stepped up their pursuit of European soccer this summer after Powys rivals Newtown capitulated in the second half at Latham Park.
There had been little to choose between the sides before the break, but the encounter changed dramatically once Dave Cunnah had volleyed Pool into a 53rd-minute lead.
Cunnah capitalised after the Robins had failed to clear Richard Harris's low corner from the right, with the ball eventually finding the midfielder who lashed his shot into the net from nine yards out.
And from that moment on, Newtown's challenge fell apart as Calvin Davies nipped in to beat onrushing keeper Jon Rowley to nod home his side's second on the hour with the home defence at sixes and sevens.
Harris then headed home unchallenged from close range following Stuart Vernon's 70th- minute corner.
Newtown's miserable second period was completed in injury time when Davies drilled home his second of the game following a strong run from substitute Steve Rogers.