Bar Soap. You wouldn’t think soap is capable of clogging your drains, but it definitely will. Bar soap has a habit of re-solidifying in your drains, leading to clumps of it forming into a large, goopy mass over time that will eventually cause a blockage.

Does hand soap block drains?

Soap is another culprit. “Sometimes, soap itself is not a problem, but when it is combined with hair and other substances, it can form into solid clumps, clogging your drain,” James says. “But on the other hand, many traditional bars of soap also include grease or fat, and neither should be washed down the drain.”

Can I pour liquid soap down the drain?

Liquid dish detergent can be used as many times as needed, since it does not cause any corrosive effect on your pipes. It is also a good preventive measure to regularly pour some liquid dish detergent down the drain to keep your pipes grease-free. This method should NOT be used with chemical drain cleaners.