I ordered kit, first time ever for new pool, last spring and used until fall. Is it all good for this year? There is probably enough FAS DPD for this year for me, but the powder has turned from off white new to charcoal. Always stored inside around 70 degrees out of light. I was going to grind the powder in a mortar since it's less fine grained now. Or should I buy any new reagents? I don't see dates on the kit' which I ordered with other chemicals from Pool Supply Wharehouse I think, so I don't know how long it sat there. I will order through member here going forward.
thanks
thanks