Aquatic Plant Forum banner

1 - 4 of 4 Posts

·
Registered
Joined
·
9 Posts
Discussion Starter · #1 ·
I recently made a drop checker out of a cough medicine cup and for the solution i mixed tap water with distilled water until i got a kh of 4. The drop checker started off dark blue, and after a couple hours truned green. My only concern is that i may be getting a false readings due to the tap water.

So can tap water screw up my readings?

Thanks
Brandon
 

·
Super Moderator
Joined
·
7,429 Posts
Tap water doesn't work at all, because the alkaliniity of that tap water comes from things other than carbonates. The 4 dKH has to be from carbonates only. Mix sodium bicarbonate, baking soda, with distilled water to get the 4 dKH, not tap water.
 
1 - 4 of 4 Posts
Top