TIRUPPUR: The power tariff hike has come as the proverbial last straw on the camel’s back as far as power loom units in Tiruppur are concerned. Many power loom unit owners said they dismantled machinery and sold them as scrap in the past six months because they were bogged down by high yarn prices and low weaving charges (given by master weavers), The revised power tariff will force many more to follow suit, they said.