Hi all,
we're parked up in France for the summer so have bought waste pipes to go straight into the drain, trouble is when we empty the kitchen sink it bubbles up through the shower or bathroom sink, it doesn't matter how much adjusting the OH does he can't sort it.
The outlet clearly isn't draining away quickly enough, hence the kitchen water is doing what water does best and finding the easiest was out of the system.
Hubby needs to check for any kinks in the pipe, upward gradient etc., or perhaps simply the drain into which you've put the pipe isn't draining properly.
How far from your waste outlet fittings on the van is the drain?
If the runs 12', then the gradient is probably to weak to allow the water to drain quick enough. Assuming you have two outlets then Mikes suggestion is probably the best option provide better drainage.
I had this twice,first was when the caravan was not level and water was coming into the shower tray.second was the pipe I used was in the water of the drain and this way the water could not get away.make sure the pipe is free to drain at the end of it.if you only have one drain pipe for both sink and then the water will take the easy way and go up the sink drain before leaving.
Post last edited on 02/05/2013 13:41:12
------------- the only silly question is the one you do not ask.
If you can where the pipe goes into the drain dont push the pipe deep into the ground drain, so you can see the water coming out in case this drain is part blocked, & as been said run 2 outlet pipes the shower is the low point so if there is any restriction it will bubble up through the plug hole, or plug that. Its just that I am a plumber of 40 + years! good luck.