Hi Hoppy,
Thanx for the Clarification. I found the answer from some previous posts of Your's here:
DIY Drop Checker--Post #1
Which leads to here--More in-depth:
Does it work? ADA glass dropcheck co2 indicator--Post #25
Here's some Pix of the 1 I just made--Mind you, its cost was $0 (I had everything) and it's going into my A. javanicus setup--so, looks are not currently of utmost importance:
Parts:
Assembled--the top heater holder just goes above the bottle to help reduce the buoyancy-pull on the heater holder around the bottle neck:
Full:
Its an 8.45 Fl oz. "Kid's Connection Soda" bottle. I bought them at Walmart in a 4-pak for $1-2 and I use them for DIY C02 Bubble Counters. This one was an Extra. The PVC is just 1/2" and the bottle opening fits it like a glove--No glue, silicone, etc. It currently has about 95ml of RODI water set to 5kh w/ BS.
I added 114 drops of pH liquid--and its really too dark. I am going to install it an see how it looks under the light. But I will probably redo it with less drops. The water color is not Blue, but Blue-green--what does that mean? The RODI water was made yesterday and was putting out 0-2ppm TDS. The Gallon jug has just be sitting capped overnight. Any thoughts on that?
EDIT: I was afraid that the bottle body was just going to be too wide for the suction cup to hold--and it is. So, I have eliminated the suction-cups and tied 2--1 1/2 oz lead weights around the neck--dangling about 3" below the bottle. So, now it is a floating version. :-\"
Anybody know if the entire Drop Checker
Must be below the water surface--like for pressure? I guess we'll find out in a few hrs!
I also redid the fluid mixture: 100ml and 10 drops of pH liquid. Now its a nice pretty blue and should be easy to read....
Thanx!