Hand soap and shaving cream can build up in drain pipes. I don't remember having a sink blocked. When a drain gets slow, I agitate with a plunger. I do that several times a year in the kitchen, for the gratification.
Come to Florida. Just yesterday evening I came across one in one of our bathrooms. It was curled up on the window sill and tried to bite me when I picked it up to transfer it to its natural habitat.
No idea how it got in; true, it was a baby but the house is pretty tight. I found a Cuban tree frog in the toilet a couple of weeks ago and figure it came down the vent pipe but doubt the snake did.
PS: After tiring of snaking and snaking, I used those 'expanding' hose attachments for 'flushing' a drain via the roof vent pipe. Went from snaking every year to having clean pipes for at least another 10 years. Ms. really was happy that the drains were clear, but ecstatic that I didn't drag a snake through the inside of our home. I actually had to buy a new snake each use! With what's down there, I kinda agreed.
PS: I know I'm preaching to the choir, but do use common sense when doing the 'high powered' flushing.
When I was a kid, my Dad had to snake out the kitchen sink drain every few months or so. Black grease. He used a snake, as I recall.
About a year ago, I got a request from a friend, his kitchen sink stopped draining. I ended up using a snake, took 15 feet or so of cable to punch through. Then some drain crystals to help clear it the rest of the way.
Perhaps some drain crystals will help your hair sink.
I use a hand cranked drum with a 3/8" diam snake. Think it holds 25'. Just use some rag to wipe the snake down before pushing it back in the drum. Just did the tub and pulled out a bunch of hair. It was my son who spotted the screw on the lever activated plug. I never saw it in the
18 years of bathing in that tub. That was a "cosmetic" screw, hiding the screw that attaches the plug to the lever. Luckily they both came off with no trouble, and the snake fit past the lever mechanism. Had to use scissors to cut the hair that was caught by the lever bar. About 4 years I got some hair out by using detergent and plunging repeatedly, and got the drain was flowing okay, but a bit slow. This time the detergent and plunging stopped it from flowing at all. Must have just loosened it up or swelled it up and caused a complete blockage. I think some of the hair I pulled out this time was my daughter's who hasn't lived here for 6 years. My wife has been using a plastic screen drain since I got the hair out 4 years ago, but maybe it's letting some of her hair through, or maybe that was all old hair that was catching soap. Not sure. It's draining as fast as it ever did now. So to answer Tony's question about how it happens, in my case it's the mechanism catching the hair. Though well made, this lever activated pop-up plug also catches hair.
I'm surprised that bacteria wouldn't eat hair in 6 years. Some say it's a combination of hair and soap scum that clogs drains. Baking soda can turn soap scum into soluble soap.
Plumbing-raleigh.com recommends equal parts baking soda and vinegar as the first thing to try for a hair clog. Vinegar is 95% water, so the mixture is essentially baking soda and water. I doubt the vinegar helps.
When my kitchen drain gets a little slow, I remove the strainer and put in a tablespoon or so of baking soda. I add an ounce or so of water to wash it down. Then I wait at least 5 minutes.
Then I put a rubber cover (universal plug) over the drain and put a couple of inches of water in the sink. I remove the cover and plunge. Some of the black stuff that was coating the pipe will come up, and water will drain faster. I've tried it without using baking soda. The soda seems to help.
When I've done it in the bathroom sink, I've had to block the overflow. I've also sped up my shower drain that way.
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