Advice on caravan curtains wanted please

One school of thought is that the moisture traps actually draw damp air into the caravan through the vents. 🤷🏻‍♂️

Probably the weather/environmental conditions simply happened to be just right for mould to form this winter. 

I remember a friend of mine installed a solar powered fan in his van, in an attempt to stop mould forming. Obviously the fan wouldn’t have been very powerful, but he reckoned it worked.

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Mystery then, Impy! As for those moisture traps it is suggested that they would only work if the van is totally sealed from the outside. Theory is that if we promote good ventilation the moisture content of the air inside will always be balanced wth that outside. That's just the laws of physics which render the moisture traps a waiste of time and money. The secret then is to maintain ventilation and circulation and limiting as best any materials from being able to collect and retain any condensed water vapour in its liquid form.

It does sound like the curtains must have been damp sometime whilst in storage for the mould to form.  

It happened to our liners a few years back, but nothing on the curtains themselves, using various cleaners reduced the appearance of the spots but could not eradicate them.

We always use the blinds anyway and the curtains are permanently tied back, so we removed the liners completely and the curtains continue to be used for show inside. Mould never returned so maybe the liner material is susceptible to changes in the air.

Thank you all for your replies and inputs. We have an "organic drycleaners" in our area so will take the curtain and have a word with them, if they say they can clean it then we will have all the curtains dry cleaned, if they can't help then as been suggested I will wash them on a cool wash, by hand, cool water and drip dry and hope that works.

We close the curtains whenever the caravan is not in use be it summer or winter (we don't want unwanted eyes peering in although we don't leave anything on display and remove all valuable items), as we don't want to put a strain on the blinds/tension we only use them when we are in occupation. I guess others will have different opinions on that - horses for courses I guess.

rubbing alcohol?

We have the same problem for the first time in over 30 years of caravanning. We,ve tried the white vinegar solution but has not removed all of the spots completely. Time for a light Milton solution I think. 

It worked for me. I took the curtains down, treated the marks very carefully, then rinsed with water and dried them before rehanging. Good luck.

Not always the case, Deleted User User. It took over three hours to remove and then refit ten curtains in our Lunar 524. There is almost no room to get one's hands in and the screws that hold the track are not accessible at all, even trying to use a cranked screwdriver. Point nosed pliers helped a bit but still very awkward trying to get the hooks out of the runners. Trying to work upside down for much of the time is no joke. Obviously no thought given at the design stage.