If you’re buying a house in Dekalb County, check out the bathrooms. Otherwise, it could cost you.

Starting in June, Dekalb County will no longer hook up water service to newly sold homes that do not have low flow toilets. It’s an effort to conserve water during the drought, and it could mean a heavy cost to home buyers who have not done their homework.

The “ineffective plumbing fixture replacement plan” was approved by the county commission and signed into law by CEO Vernon Jones. It affects the sale of all homes built before 1993. The only exceptions will be homes that are transferred within a family and economic hardship.

There are approximately 165,000 homes in the county that were built before 1993, the year the low flow toilets became mandatory.

County officials estimate that if all those homes, along with older businesses, switched to low flow toilets it would save six million gallons of water a day.