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Old 03-26-2020, 11:28 AM   #1
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Plugged Bathroom Sink

We’ve always had slow draining of water in our bathroom sink. Now it’s quit totally. We’ve tried the baking soda, vinegar and boiling water treatment to not avail. Any suggestions?
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Old 03-26-2020, 12:05 PM   #2
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Plunger or take the trap apart and clean it
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Old 03-26-2020, 12:37 PM   #3
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Take the trap apart and snake if if required
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Old 03-26-2020, 05:30 PM   #4
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The waterless trap below comes apart by hand or with minimal tools. When I had that problem the drain came apart by hand. Don’t forget something to catch the water. It ended up being a ton of hair caught in there. Goes back together easy too.
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Old 03-26-2020, 08:39 PM   #5
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Agree, remove P-trap under sink by unscrewing the two plastic collars by hand. Will likely find a build up of toothpaste/soap/hair. Take it outside and flush it out. Be careful not to overtighten when reassembling. Because we use a lot less water than sink at home, gunk tends to build up faster.
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Old 03-26-2020, 09:02 PM   #6
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Agree with the above responses. When brushing our teeth, we now spit out the toothpaste into the toilet instead of the sink. The most recent blockage wasn't the P-trap but stuff caught up under the sink stopper. We pulled it out and cleaned it and it now drains fine.
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Old 03-27-2020, 05:34 AM   #7
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Great suggestions. I know what we’ll be doing today. Thank you for your responses.
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Old 03-27-2020, 05:53 AM   #8
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We highly recommend using “Dissolve Liquid Hair and Grease Clog Remover“ from Amazon for $12. Worked for us when nothing else did.
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Old 03-27-2020, 06:31 AM   #9
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I don’t believe the use of harsh chemicals is recommended due to the seals and connections that exist in our trailers. Should be a last cast effort IMO
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Old 03-27-2020, 08:56 AM   #10
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Originally Posted by BigSxyWhtGuy View Post
I don’t believe the use of harsh chemicals is recommended due to the seals and connections that exist in our trailers. Should be a last cast effort IMO
Agreed. These chemicals are not compatible with many of the materials downstream of the drain, particularly the rubber seals in the dump valves. Do not do it.
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Old 03-27-2020, 09:53 AM   #11
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Could be a blocked tank vent...these can become blocked with leaves & debris from the roof or the pipe itself can "drop down" into the tank (below the water level) and not allow air to be displaced for the water coming in.

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Old 03-27-2020, 10:26 AM   #12
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Could be a blocked tank vent...these can become blocked with leaves & debris from the roof or the pipe itself can "drop down" into the tank (below the water level) and not allow air to be displaced for the water coming in.

Shari


On an 18 classic? I guess this is a possibility as well. OP, try to disconnect waterless catch first and then climb on the roof and check stack
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Old 03-27-2020, 10:52 AM   #13
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Quote:
Originally Posted by SMKovalchik View Post
We’ve always had slow draining of water in our bathroom sink. Now it’s quit totally. We’ve tried the baking soda, vinegar and boiling water treatment to not avail. Any suggestions?
******
After the First Time... you will be experienced.

Take a hose connected to City Water under pressure. Have a nozzle on the 'working end' that can be immediately on/off. Like used to water a garden with the pistol grip.

Dampen a towel. Place it around the nozzle to prevent all or most of the water that is not directed down the drain. (Although removing the trap is advised, first, for the bacteria slime that coats a trap and will clog up eventually.) This slime will wash out under pressure. Hot water can distort the PVC in a trailer.

Bathroom sink is not as likely to get a clogged drain like a Shower Drain. Often HAIR. It will stink is your first clue as it is a Bacteria Recreation area.

Let the water pressure... at FULL BLAST. In short bursts at first. Be prepared if the drain is really clogged with something not soft, but a hard clog... stop the water as it will overflow. Then bail it out and start pulling plumbing apart. If the trap is clear... the hose pressure can be used again directly into the PVC pipe.

We rented apartments at one time. A plumber is expensive, as it is always becomes the OWNER's problem... not the people who are renting... kind of thing. That is why they rent...

When you discover what was plugging the sink... don't do that any more. Some lessons are learned, others you will have to pay dearly to discover.
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Old 03-27-2020, 11:12 AM   #14
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FYI/ There is also a gizmo, forgot what it's called, that connects to a hose. It consists of a rubber bladder that fills up with water and releases when a certain amount of pressure is built up. Never used it in an RV situation.
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Old 03-28-2020, 06:52 PM   #15
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It's a drain cleaning bladder. Lowes, Home Depot, Harbor Freight, ect sell them for about 10 bucks
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Old Yesterday, 04:34 AM   #16
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Thanks to everyone. The baking soda/hot water trick and some minor probing did the trick. Will probably take the P-trap off to just make sure all is cleaned out. Thanks for the suggestions from everyone.
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Old Yesterday, 05:47 AM   #17
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This often works for me:
https://www.amazon.com/Vastar-Drain-...5482408&sr=8-5
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Old Yesterday, 06:10 AM   #18
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Thanks, never seen these. Looks very handy for home and trailer.
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Old Yesterday, 09:59 AM   #19
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Plugged Bathroom Sink

They work quite well for standard P-traps. Grabs the hair and soap clog and pulls it right out.

I wouldn’t use it on a Hepvo trap less system out of concern it would damage the flaps.
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