[ftp]

Does it have a shelf life? I bought some in bulk some time ago and had to change my vessel tonight. I noticed the top layer had dried out in my air tight container - does this make any difference to it's performance? I did a random check of my tds and it had risen much sooner than i expected probably because i had become lazy and not used my booster pump for several weeks so my tds was 14 before di instead of it's usual 6ppm

[edd]

some say it must be fresh and new I don't know as we always buy it when needed you
know with next free day delivery there is no need to stock up
But I don't think it will last if it has dried out edd

[darragh windows]

Does it have a shelf life? I bought some in bulk some time ago and had to change my vessel tonight. I noticed the top layer had dried out in my air tight container - does this make any difference to it's performance? I did a random check of my tds and it had risen much sooner than i expected probably because i had become lazy and not used my booster pump for several weeks so my tds was 14 before di instead of it's usual 6ppm

i think its like a cake you have to let it breath slightly