'dH' measurement

[MayorNewton]

OK, another 'dumb' question...lots to learn here. When I check my GH or KH with my handy drop kit, what does it mean when it takes, say, '30 drops to change color...is that 3dH? Sounds logical to me, but making sure here.

Thanks once again!

Newt

[Roost426]

I have the TetraTest kit and thats how it is for mine the number of drops = the dH. Or it also says you can use double the reccomended water amount (10ml instead of 5) and then every drop counts for 1/2dH. Oh and 1dH is equal to 17.9 ppm.

[Alight]

30 drops would mean 30 dH not 3 dH. This is fairly hard water which squares with your TDS readings.

[diablocanine]

OK, another 'dumb' question...lots to learn here. When I check my GH or KH with my handy drop kit, what does it mean when it takes, say, '30 drops to change color...is that 3dH? Sounds logical to me, but making sure here.

Thanks once again!

Newt

I learned to look down into the tube from the top with the cap off, helps notice the color change easier. Check your instructions carefully, different kits convert measurements different ways. Are you sure it took 30 drops? Using my kit you would have 30 dGH or 537 ppm which would make me pitch the kit and get a new one if I was checking my water, I believe that is off the scale hard water. What kind of kit (manufacturer) are you using.

[MayorNewton]

Oops! I meant 3, not 30! And that was just an 'example,' not my reading. I got 20GH and 11KH when I tested. I was just wondering what each 'drop' worked out to, and my question's answered! Thanks, all!

Newt