Multimat not holding air? - no puncture

[James Higgins]

Can someone advise as to what might be the problem with my self inflating multimat.

I've had my multimat stored away for quite a few years in its stuff sack. I know it worked the last time I stored it away, but now i have got it out after a long time it won't hold air.

Any suggestions would be appreciated?

 

[ozzy1977]

Blow it up and stick it in the bath

 

[Rabid]

3x options 1. Hole 2. Perished 3. Valve as stated inflate and put in bath bubbles will show leaks.

 

[cbr6fs]

How much air is it loosing?

In really cold weather a mat filled with our warm breath will lose some pressure as that air cools during the night.
It's not enough of a pressure drop to go flat but it is noticeable.

 

[James Higgins]

Thanks, I will try putting it in some water to see if the valve is leaking.

Its losing all of its air. I was testing out a new sleep system outside at home the other night using this mat. It deflated completely. Good job I was at home!

This was the first self inflater I bought. I'll continue with my trusty closed cell foam mat

 

[forrestdweller]

3x options 1. Hole 2. Perished 3. Valve as stated inflate and put in bath bubbles will show leaks.

option #4 = "made in china"-----> air escapes along the seam of upper and lower piece of fabric.... (guess HOW i come to know that....)

 

[Mike_B]

Probably delaminated. I'm guessing that when you ref "multimat" you're not using this as a generic term for a Thermarest? If it is a T/rest, then just return it and they'll replace it foc. I'd doubt whether any of the others offer that level of service tho.

 

[forrestdweller]

Probably delaminated. I'm guessing that when you ref "multimat" you're not using this as a generic term for a Thermarest? If it is a T/rest, then just return it and they'll replace it foc. I'd doubt whether any of the others offer that level of service tho.

my therm-a-rest delaminated but still held the air inside. wish i'd been able to keep the receipt (lost while travelling) to get it replaced....

 

[Harvestman]

I've got the same problem on my inflatable mat after last weekend. It was cheap and has done many years, so I may just replace it.

 

[ozzy1977]

I had a karrimor xlite (same as multi mat superlite) delam and form a huge bubble between the two layers, sports direct replaced it no questions

 

[Teepee]

I've a porous thermarest, also a pacific outdoor. No punctures but will lose pressure in a few hours.

 

[Mike_B]

my therm-a-rest delaminated but still held the air inside. wish i'd been able to keep the receipt (lost while travelling) to get it replaced....

I certainly didnt have the receipt. I returned it - it was replaced. That, frankly, is what I call excellent customer service!