melana Non-member Sep 12, 2005 #1 When you are testing for cal using a Seatest, when it says keep adding the drop until the color turns pure blue...does that mean when it ALL turns blue or the water turns blue and the purple part is on the bottom?
When you are testing for cal using a Seatest, when it says keep adding the drop until the color turns pure blue...does that mean when it ALL turns blue or the water turns blue and the purple part is on the bottom?
Moe_K Stabbed by Foulke Sep 12, 2005 #4 they're right. mix it up a little, because the answer is when it all turns blue.
