airlock?

You get air locks in ta and shows as no water or very slow running. because it's a closed system when air bubble enters on refilling the main water tank that acts as a dam trapping the water as tank water is low pressure ie: gravity fed there is not enough pressure in the water to shift the air lock . You need to get water up through the offending tap from another source ie mains to blow the air out.

Charlie
April 2010