Tango
Well-known member
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- Dirt. Planet Dirt.
Hi all,
Fed up with water on the inside of your van roof? Feel grim about it rusting to bits? Me too! So i've done something about it.
Basic physics: At night, the air pressure drops, the air expands, the water within decompresses, water also evaporates and floats up. This is why so many cars often have condensation inside trapped on the windscreen - a leak into the footwell, rain water on peoples shoes etc. The same applies for water in water tanks in the back of vans. I struggled with this last year and resorted to a sheet of clingfilmm over the vent with a celebrations tub on top. It reduced the problem notceably but didn't completely solve it.
Yesterday i've trialled something different. I took off the lid and put clingfilm directly over the tank and then screwed the lid back on tight so that rising moisture cannot escape. I went out there approx 10pm the results looked promising! The roof was relatively dry compared to normal (i didn't do a perfect job drying it but did get most of it).
This morning i've been out there again, still got a dry roof. It's a simple trick, hopefully it will save some of you some frustrations!
Clingfilm over the top of the tank with the lid screwed on tight over the clingfilm:
Rising mosture is trapped inside the tank under the clingfilm - although this pic doesn't show it brilliantly, i could see loads of moisture
The result is no rain waiting to fall!
My hose is still connected along with the pump, it's literally just the tanks air vent that is completely blocked. I hope this helps some of you. Obviously the film will be disposable each day and a new piece applied but it's a small price to pay to preserve your van.
Fed up with water on the inside of your van roof? Feel grim about it rusting to bits? Me too! So i've done something about it.
Basic physics: At night, the air pressure drops, the air expands, the water within decompresses, water also evaporates and floats up. This is why so many cars often have condensation inside trapped on the windscreen - a leak into the footwell, rain water on peoples shoes etc. The same applies for water in water tanks in the back of vans. I struggled with this last year and resorted to a sheet of clingfilmm over the vent with a celebrations tub on top. It reduced the problem notceably but didn't completely solve it.
Yesterday i've trialled something different. I took off the lid and put clingfilm directly over the tank and then screwed the lid back on tight so that rising moisture cannot escape. I went out there approx 10pm the results looked promising! The roof was relatively dry compared to normal (i didn't do a perfect job drying it but did get most of it).
This morning i've been out there again, still got a dry roof. It's a simple trick, hopefully it will save some of you some frustrations!
Clingfilm over the top of the tank with the lid screwed on tight over the clingfilm:
Rising mosture is trapped inside the tank under the clingfilm - although this pic doesn't show it brilliantly, i could see loads of moisture
The result is no rain waiting to fall!
My hose is still connected along with the pump, it's literally just the tanks air vent that is completely blocked. I hope this helps some of you. Obviously the film will be disposable each day and a new piece applied but it's a small price to pay to preserve your van.