I done ours yesterday....
We have the 5L can.
I used a kitchen spray bottle to spray on all around, and then a tea towel to wipe over after.
Then a spot top ups.
Id say the bottle was 1.5L, and I poured a 1/4 back in the bottle.
£32 for the 5L. And they say do it every year.(So four year s Worth?)
I had the UV stuff left over from when I reproofed the Polly cotton tent last year.
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