Slow sink/basin emptying Coachman VIP575 2016 mode
Hi Anyone know why the bathroom basin and kitchen sink on the above van are extremely slow to drain?
Both are teed together just before the connector to the waste water carrier, the tee was a 90 degree tee which I have changed for an angled swept tee connector. I have lowered the outlet connectors and refitted the pipes to give more fall to the outlets.
I have seperated the pipes at the first connector from the basin and water flow is still slow just running approx 1 metre mostly vertical from the sink. The waste outlet connectiors on the sink and basin are flat bottomed with an horizontal discharge connection
and though it is clear and water should easily run out I am thinking that maybe a connector with an angled donwards discharge may improve things. Anyone have any ideas.
Dave
Comments
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Depends on what size the drainage pipe is. They can be a bit slow. Another thing is if your on a slope and there might be a slight uphill to it. You might also try some drain pipe cleaner. you can get some from your caravan dealer shop this might help.
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Poundland were selling a drain cleaning brush, a bit like a very long bottle brush, just the right size for caravan waste pipes.
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Thanks Mike Navigatuer and IanH
Wish your suggestions would help but everything is clean it is a brand new caravan! Only trying it out on our "level" drive. The pipework is 28mm with some parts in larger flexible piping which all seems to be ok I am sure it is the shape of the part screwed
to the waste outlet of the sinks.Dave
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"New" does not mean "perfect". The pipes could be clogged with swarfe for a start! Or compressed by clips, or not jointed freely.
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I'm afraid that slow caravan drainage is a widespread problem. We've blasted ours through with a hose at home, creating good drainage immediately afterwards, only to suffer a trickle next time we're away. People have been known to replace their drains with
domestic pipe to good effect. I think that the 28mm pipe used in vans can suffer air locks as well as small obstructions.0 -
I had a similar problem with our caravan. Cured it by using white plastic 34 mm pipe from the caravan outlets to the wastemaster ensuring that the discharge end sits just into the wastemaster so discharged water runs freely into it.
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Some years ago there was an article about in the cc magazine upgrading waste systems in caravans using domestic waste pipe. I don't know if cc archeives these articles. It may be worth asking the question. Otherwise a look on you tube can sometimes come
up with an idea.0 -
Hi Mitsi, Frodos, JennyC
Thanks for your replies. I fitted domestic size waste pipe to my previous caravan which had mainly the flexible convoluted piping and that was fine after the repipe, but this van has mostly solid pipe albeit only 28mm and i was hoping it would be OK but
it looks like a crawl about under this van to install the domestic pipework.Dave
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What's the rush, you're supposed to be on holiday.
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What's the rush, you're supposed to be on holiday.
Write your comments here...
'The rush' isn't quite how it is. I'd like to rinse down the shower after using it but can't because it has an inch of water remaining which can take half an hour to drain, then another half an hour to drain the rinsing water, which is only partly effective because it's backed up. I'd like to dry off the shower before putting the cat litter tray back in, but I can't. I'd like to wipe down the shower walls immediately after showering, but would need to stand in an inch of water to do so. I'd like to save the time it takes to unreel the hose and force water through the drain when I get home, then reel the hose back. These are all extra chores which I don't have to do at home, so I don't want them while I'm holidaying.
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I think the problem is mainly down to air locks, back pressure and slight variations in level, in what is small bore pipe work with a low fall. Some times ours drains well, the next site poorly for no obvious reason. Sometimes you can put it down to, not
levelling the van 100%. Or there being less fall into the waste master, other times there is no clear reason. If our pipe into the waste master is submerged by the liquid, it can create enough back pressure to prevent a decent flow. When on a service pitch,
initially the main sink is very slow to drain, until the air has been expelled from the pipes. Then it will easily cope with the tap running at full flow. I really don't think there is any answer, other than to live with the variations, or inrease the speck
like DavidN. The last time I crawled under our van to fix something I ached for days, so I think I will put up with It.0 -
Make sure the hose into the wastemaster is just into the entry hole and not into the water in the wastemaster.
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We have this problem with our motorhome that we bought new last Sept. We just keep a sink plunger handy. Generally speaking a few pumps of that gets things started and it drains away OK.
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On the V IP 565 the drain from the shower comes out vertically then continues down and then up again forming a large U bend to get around a chassis member. This causes the shower problem. I would like to re-route it to make a better fall, will tell you
how I do it when I do it......Peter0 -
Remember the loop acts as a trap to stop smells coming back from the wastemaster
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Remember the loop acts as a trap to stop smells coming back from the wastemaster
My caravan was terrible from new draining the sink. Due to a loop down and up underneath. dealer re-routed to avoid that and all was fine. If you wamt to avoid smells there i a reservoir in the top of the wastemaster and running waste pipe into there such that it is below that level stops smells
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We have a Coachman VIP 560 2016, and it was slow the first time, but I was happy to wait. Only done two trips, but the other time it was faster, I just though it was an air lock in first time. See what happens next trip next week, will report in
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.......cleaned them out and the drainage improved
