We bought two 10cm Outwell Dreamcatchers last week. One has inflated fine but the other will not go thicker than about 4-5cm.
We have tried blowing into it - the air just comes straight back out. We have also tried closing the valves and rolling it so the air is pushed to one end. This gives some quiet popping sounds like the foam might be expanding a little but no visible expansion and it still doesn't suck in any more air when the valves are opened once again, or allow us to blow any more air after we do this so we're making no progress.
Anything else we can try? Or is it faulty?
Thanks
------------- Ex-festival lover trying to get back into camping with an eager 5 year old.
We only have the Aldi 5cm SIM's but they still need topping up after we open them, they only ever inflate to about 1/2 or 3/4 capacity.
To get them fully inflated we top them up by blowing into the valves, there is a knack to this, as you say the air will come back out so what I do is only open the valve so it is only just open to allow air in, then blow into the SIM, then when inflated fully I push down on the valve with my tongue and quickly tighten the valve. The key is to get the valve shut before too much air comes out, it also helps to overinflate them slightly so this compensates for any air coming out before you get the valve shut.
------------- May 2015 - Arrow Bank 4 nights
July 2015 - Manorafon 4 nights
August 2015 - Piccadilly Caravan park 3 nights
August 2015 - Wheal Rodney 11 nights
I tried what you suggested and even after leaving it for a while the air came shooting out with great force when I opened the valve again. I started suspecting it wasn't actually a 10cm SIM but there is nothing written on them to say what they should be. I looked at the Outwell site for clues and saw the weights.
Thick one weighs 2.7kg as expected, non-inflating one weighs 1.7kg.
It's a 5cm SIM in a 10cm bag
Thanks for your help, another trip to Go Outdoors it is...
Post last edited on 29/05/2015 12:41:09
------------- Ex-festival lover trying to get back into camping with an eager 5 year old.
A day of all things motorhome and campervan. The show is held both in the main indoor arena and across the grounds. Catering, hot drinks and food options are available. Easy access to the site and free parking included. Win one of five pairs of day tickets
Topic: Non-inflating SIM
pardon the pun 
