How drains work. A drain simply needs gravity to work. A drain is located at a higher level than where the water is being delivered. This simple process can be a big headache if it’s interrupted. When a drain in your bathroom becomes blocked by foreign objects or a sink drain is blocked by food or grease build up the drain flow may slow or completely clog. Here are a few tips: never place too much food in your garbage disposal at one time and always use lots of water while using it. Never put rice, pasta, or beans down your garbage disposal. When these block your drains they may harden almost like concrete in your drain pipes. If this occurs under the house, repairing can become a messy and costly process.
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