slow draining waste tank

It seems mad that some manufacturers would use 1" pipework for a drain....I suppose they save a few pence!!!!!

It seems mad that some manufacturers would use 1" pipework for a drain....I suppose they save a few pence!!!!!

Its not to save a few pounds. Baileys use the low profile Al-Ko chassis so the waste pipe is always going to be lower than many motorhomes. Using a larger diameter pipe would make everything even lower and risk grounding. Bailey motorhome owners on their Facebook group have come up with all sorts of different methods of changing the system to speed up emptying of the tank. However apart from removing the baffles in the tap I have not found an alternative I would be happy to follow!!!

David

So it's just bad design then David?

As are most m/van waste outlets

Not necesarily slow but not user friendly ,and then expecting caravan site operators to spend large sums to counter the poor design

As are most m/van waste outlets

Not necesarily slow but not user friendly ,and then expecting caravan site operators to spend large sums to counter the poor design

I don't know if that's actually accurate, it's very much dependant on the manufacturer and in some cases the model. I have had 13 motorhomes and don't recall any of them having an issue, I have obviously been lucky. I had a Bustner Elegance 821 where the water gushed out. I changed it to a 900 model which had an electric control valve, this restricted flow a little but no real issue. Current van has option to divert grey water through the black water tank to flush the black water system. It flows very well and empties quickly. It also has a lot to do with the angle the vans sitting at if the design has only a gradual slope. Drive onto levelling blocks if need be to help flow.

As are most m/van waste outlets

Not necesarily slow but not user friendly ,and then expecting caravan site operators to spend large sums to counter the poor design

I don't know if that's actually accurate, it's very much dependant on the manufacturer and in some cases the model. I have had 13 motorhomes and don't recall any of them having an issue, I have obviously been lucky. I had a Bustner Elegance 821 where the water gushed out. I changed it to a 900 model which had an electric control valve, this restricted flow a little but no real issue. Current van has option to divert grey water through the black water tank to flush the black water system. It flows very well and empties quickly. It also has a lot to do with the angle the vans sitting at if the design has only a gradual slope. Drive onto levelling blocks if need be to help flow.

Write your comments here...Its not if they flow well its the "dance" thats needed to line up with the waste point,as what should be is an extention hose to enable M/van to stop clear of point and just drop pipe into the drain,the US RVs are ,it seems, the only ones that have have a proper system 

I did the "baffle removal" mod recently on our Bailey, and found it has helped a lot.  I'm not good at practical stuff, but found it straightforward.

If you're anxious about trying it, I first saw it in another forum, with these instructions and pictures:

"Firstly there is an 'inner' core on the outlet side of the tap which has a half covered inside to it. I started to cut the half bits out, but found the whole inner bit comes out easily as with all the grey pipe it is only push fit.

Next I removed the tap, by turning it slightly to the point where it lines up with gaps in its locating ring and then pulls out. The hole is quite small in the tap and I simply made it much bigger.

Photos can be found at:-

http://www.flickr.com/photos/38026671@N08/8523648809/
http://www.flickr.com/photos/38026671@N08/8524758394/ "