Scrap the water dump valve on my TD5?

[Dan]

I've read on the forum that some 300TDi owners have sealed up the water dump valve between the air inlet and the air filter so there is no risk of water leaking into the air intake during a creek crossing.
Has anyone done this on a TD5? Or got rid of the dump valve altogether?
The air hoses between the Safari snorkel and the air filter on my TD5 Defender have cracked and I was going to replace them. But I don't like the look of the water dump valve and have heard that they can stay open due to the pressure of air rammed in by the snorkel.
Anyway, mine looks dodgy and needs to go but they're not cheap to replace so I thought about bypassing it.
Is the dump valve necessary to stop water accumulating in the intake, for example in heavy rain? Is there any reason why I shouldn't just pull it off and have one piece of continuous hose running between the air filter and the snorkel? Has anyone with a TD5 done this?
The dump valve is part number 9 in this diagram.
https://www.aulro.com/afvb/images/imported/2012/08/1332.jpg

[Benny_IIA]

i have removed all the crap from the air box to the wing and replaced it with 3' rubber intake hose from a truck shop.

Much more air flow over the orignal design and not chance of water sucking through the 'dump' valve

[Defendozer]

If your running a Safari snorkel I wouldn't remove it due to the possibility of rain entering the snorkel whilst driving and running down and accumulating in the low spot where the dump valve should be? Not sure if that would happen but something I'd look into.
As for staying open from air pressure I don't think that would be a problem when crossing a creek as you wouldn't be driving fast enough for the amount of air being forced in to be more then the amount of air the engine is sucking in..