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Car Forum / Driving, Maintenance, Tuning / RVs / September 2006Slow Drain
Hi all, Wondering if any of you have run into this kind of problem with the drain in your little sink in your pop-up. My 87 Starcraft has a little sink which drains just fine, through the hose connected to the underside, down through the hole in the bottom of the rig. Not a problem at all. Unless... I screw a hose onto that drain opening underneath. The hose that I use is just a standard issue garden hose (I know, I should get a gray or black one for this), about 20 feet in length, and I always make sure it's not kinked and is a nice smooth flow downhill out the other end of the hose. When it's got the hose attached, the water in the sink takes a REALLY long time to drain, as if there's a big ol' hairball stuck somewhere. At the other end of the hose, there's a little trickle coming out, about as much as is leaving the sink. I'm sure the hose is clear because I've hooked up to a faucet in the yard and blasted tons of water through it, no problem. Seems someone's mentioned something like this before on this newsgroup, but couldn't find that reference again. Let me know what you think. Thanks, -Rob <snip> > When it's got the hose attached, the water in the sink takes a REALLY > long time to drain, as if there's a big ol' hairball stuck somewhere. > At the other end of the hose, there's a little trickle coming out, about > as much as is leaving the sink. The problem is air, or a lack of it. When operating without a drain hose, air can easily get in the drain, but when connected to a long hose, it can be a problem. The common solution is to attach a Y-Connector where the hose connects to the pop-up, connect the long drain hose to one side of the Y, and a short "vent" hose to the other side. The vent hose should be about 2-3 feet long and positioned so that no drain water can come out or collect in ot. But really, you should be collecting your waste water for proper disposal. It's the law in many states, and helps to prevent attracting vermin (including bears) to the campground. Some people have found that even with short hoses to collection systems/grey water tanks, they still need the vent mentioned above. Austin > When it's got the hose attached, the water in the sink takes a REALLY > long time to drain, as if there's a big ol' hairball stuck somewhere. At > the other end of the hose, there's a little trickle coming out, about as > much as is leaving the sink. Common problem. A Y connector to allow air in will help as already mentioned. I had the same problem getting the shower to drain through a garden hose. Doesn't work. Instead I plumbed the sink and shower drains to a single 3" standard RV hose. Just took a few PVC fittings from Home Depot to do the job. Both now drain perfect and I can easily connect to campground and RV parks sewer dumps. > Hi all, > > Wondering if any of you have run into this kind of problem with the drain > in your little sink in your pop-up. Side mounted drain with hommade vent drains fast !!!! Add pvc extension to attach to underside...piping unthreads for storage.. http://travel.webshots.com/photo/147344982/1147065936056034054cUKxIa > My 87 Starcraft has a little sink which drains just fine, through the hose > connected to the underside, down through the hole in the bottom of the [quoted text clipped - 20 lines] > Thanks, > -Rob Is it necessary to have the vent as high/long as you have it, or would a 12" piece just as well? >> Hi all, >> [quoted text clipped - 30 lines] >> Thanks, >> -Rob > Is it necessary to have the vent as high/long as you have it, or would a > 12" piece just as well? [quoted text clipped - 33 lines] >>> Thanks, >>> -Rob Technically it only needs to be higher than the highest water level. Only real advantage to having it up that high is for any odors. If you had it short you could smell the sewar gases. Same reason the vent on your house is so high, odor control.  SignatureRon Smith <<<<<<<Enjoy The Ride>>>>>>> I Do !!!!!!!!!! See my 240sx se @ www.ronsmithweb.com >> Is it necessary to have the vent as high/long as you have it, or would a >> 12" piece just as well? [quoted text clipped - 38 lines] > short you could smell the sewar gases. Same reason the vent on your house > is so high, odor control. I have the pipe just above the water line of the sink.. 6" above . as stated above waterline . ron. So...Would a "Y" Connector srewed into the sink drain, with one leg of the "Y" pointing down, (for the waste water), and the other leg pointing up, with a 12" hose (or so), have the same effect? >> Is it necessary to have the vent as high/long as you have it, or would a >> 12" piece just as well? [quoted text clipped - 38 lines] > short you could smell the sewar gases. Same reason the vent on your house > is so high, odor control. > So...Would a "Y" Connector srewed into the sink drain, with one leg of the > "Y" pointing down, (for the waste water), and the other leg pointing up, [quoted text clipped - 42 lines] >> short you could smell the sewar gases. Same reason the vent on your >> house is so high, odor control. Yup, as long as the 12 inches puts it above the higher water line. Thanks, everyone. This really makes sense. And the picture Ron pointed to is worth a thousand words. We've only had this rig for just over a year, and only been out about three times so far, and only 2-3 nights at a time. Not much waste water has been run through it. But my idea is indeed to have some sort of gray water collection system, into a bucket or pan. But I wanted to solve the problem with the draining first. Now I just need to figure out how to plumb it together. The drain is on the underside of the rig, near the left rear corner. I think maybe a flexible hose for the vent, connected to a T connector about a foot or 18" downstream of the connection to the underside drain will do the trick. Time for some experimenting. Thanks again, appreciate it! -Rob >> Hi all, >> [quoted text clipped - 29 lines] >> Thanks, >> -Rob "Rob J" *snip* > But my idea is indeed to have some sort of gray water collection system, > into a bucket or pan. But I wanted to solve the problem with the draining > first. > -Rob > >>> Hi all, Go here, http://reserveamerica.campingworld.com/index.cfm and search for Tote-Along.... john Thanks for answering a question that I never asked! john >> Hi all, >> [quoted text clipped - 30 lines] >> Thanks, >> -Rob |
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