@tanjaostman this the right stuff?https://www.amazon.co.uk/dp/B018T6XHN8/ref=cm_sw_r_apan_glt_fabc_J4YJFFBRC3634268D8RS
@Berrybunchfamily it looks right! What I use, that is from Sweden, has only 10 PPM concentration. These are higher, but it means they are probably more efficient!
@tanjaostman and this one? https://www.amazon.co.uk/dp/B077YT7R5P/ref=cm_sw_r_apan_glt_fabc_WEC21C3DV6Q8RR02CB0R?_encoding=UTF8&psc=1
@Berrybunchfamily looks like a good product!
dingdash.com is one server in the network
@Berrybunchfamily it looks right! What I use, that is from Sweden, has only 10 PPM concentration. These are higher, but it means they are probably more efficient!