Ants IN plumbing, help?
we live in a 50 year old townhouse apartment, two floors. we have crazy ants in the kitchen, and in the bath above it, both with a shared exterior wall. The ants are coming out the faucet when turned on a dozen at a time in the upstairs bath.They also seem to be coming up the drain and the overflow in the tub. we have city water. There seems to be two different varieties. Some are coming from cracks in wood door and window frames, which we have caulked. They then came in the ceiling light fixture. We have a three year old who still rolls around so we have not done any interior spraying. We vacuum, wipe and caulk, and use homemade and store poison receptacles, which they love. How can we get them out of the plumbing?