Slow water draining from sink and basin
Hi everyone.
Would be grateful for advice, please.
We have a Coachman VIP 2015 model.
Best van we have ever owned except for one niggle.
Water is VERY slow to drain from both the kitchen sink and basin in the bathroom.
I've tried altering the way we level the van - no difference.
We've put soda crystals down the plughole to clear any deposits.
Still no luck.
Any clever ideas?
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Nope ...... Ours is a 2014 model with the ribbed piping and no kinks but I have failed miserably in my attempts at curing this phenomenon.
Our kitchen sink is very slow in draining which is nearly above the external outlet, but the WC sink empties normally at twice the distance with more turns. With the kitchen sink I push up and down with the palm of my hand a few times over the plughole and it zips away in record time, I have given up on why now.
I'm certain that science could provide an answer
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I used to get this problem with kitchen sink after a day or two starting going slower and slower and then realised that the waste carrier was full and the waste pipe that you push in the outlets was below the level of the waste carrier and restricted the flow, so now i know to empty more often. might not help but worth keeping your eye on.
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I had the problem with my last Lunar and it was due to rerouting of the waste pipe when the motor mover was fitted prior to collection. There was a slight up and down vertical curve in the pipe. When it was rerouted to give a slight down and up curve (in the direction of flow) all was well.
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Glad we are not alone..!!
We've tried the kitchen plunger trick and it does help a little, sometimes.
I empty the waste container every morning so that rarely gets full.
yes the basin in the end bathroom does seem to empty a little quicker, especially after a bit of circular swirling of the water.
Good idea about checking for kinks - we had a motor mover fitted and it may be that the pipe was moved. I'll have a look at that when we next visit the van (in storage).
Thanks everyone.
This shouldn't be a problem of course - I mentioned it to my dealer and he said they haven't had a problem with anyone else and we just have to live with it. Just like the way the flexible sliding door jumps out of the top rail when we are travelling - I've solved that by jamming a cork in the rail.....
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If it's not the motor mover problem, check the fall (drop) on the pipework. The lack of fall will mean slow water discharge. If this us the case it may be possible to alter the pipework so that it allows quicker water discharge,
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As Kerry says, check all the pipe runs for fall it will only need a small section without a fall or a small upward slant and this will cause an air lock which will mean slow draining water. Thats why plunging the sink will sometimes improve the flow as it pushes the air lock out.
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We had this problem on our 2017 Sprite. After changing the flexi waste pipe to the grey 22mm (?) straight tube, the difference is astonishing!
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Beware using a plunger/palm as it can produce enough pressure to force open a joint (which will always be one INSIDE the caravan).
Your toilet sink empties better because (1) less water than kitchen and (2) water just moves into the long pipe run.
My caravan had long complex runs of rigid pipe which I have rearranged so that kitchen goes direct to a separate outlet, and shower and toilet sink combine to another. Two Wastemasters take twice as long to fill as one!
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We had a similar problem but solved it by pouring a drain cleaning fluid down the waste holes, leaving for a while then after pouring boiling water down, blowing hard down the holes using a piece of new flexi waste pipe. The reason for the slow leakage was seen coming into the bucket under the waste outlets....loads of gunge which had built up at the lowest level of the waste pipes.
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Put some white vinegar down pipe as you leave site, after putting bung in outlet hole. It sloshes around as you travel home, then all you do is remove bung and rinse it away. Put plug in sink at top as well. Keeps pipework clean of most gunge. Straight pipe work is better than the ridged stuff.
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Before resorting to chemical methods I’m afraid you need to get under you van and check that you pipe work isn’t running up hill somewhere. Some manufacturers seem to believe, that because they are members of the NCC. They are exempt from the laws of physics
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A bit like the problem in freezing weather when ice builds up in the low part of a loop. That was one of the drivers in removing the unnecessary lengths of pipe.
When freezing is expected I can detach an elbow and the flow from the sink goes straight down through the floor and into a bucket underneath. Handy that Mr Bailey provided same arrangement as standard for the washroom sink.
I should really put all this lot on eBay!
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as Frank Zappa might have said..."now that's Cheepnis"...
looks like that pipework was made for 'getting round' the problem yet is in fact, the cause...
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