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Doctors Medicines MCQs Q&A

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The string or cord that you use must be able to "hold" water. Usually that means that some part or all of it is cotton. The Dollar Stores sell synthetic twisted cord that cannot transit water. The round braided cord often has a cotton outside braid with a nylon or other synthetic core. These WILL transmit water. The way to test is to drop 6" of the end of the cord length into water in the sink for 30 seconds, then lift it out and see if you can squeeze water out of it easily. If you can, then this is the cord to use.

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