Whew....finally got through reading all 32 pages of this thread. I received my ReefBot and like others the needle holder was bent so it wasn't vertical. I bent it into place like others have done.
Also I'm very surprised no one else (unless I somehow missed it) struggled with getting the the RO and Tank water through the hoses and into the chambers. I tried placing the bot level with my sump and RO bucket, tried a little lower, a little higher, etc. I finally just sucked in on the tube to create a siphon and then put the hose in the connector as fast as I could but then it leaked. The problem with this is that the water just
leaked everywhere from the hose ports on the bot. I've already contacted support but if anyone has any experience or advice that would be much appreciated.
After getting everything calibrated I decided to try the API Nitrate test with the Bot and compare this to all the other tests I have. Following are those results. I did them all one after another so approximately the same time and definitely using the same water.
API NO3 Test Kit with Bot - 0 ppm
API NO3 Test Kit manual - 40 ppm
Pinpoint Nitrate Monitor from American Marine - 10 ppm
Red Sea Nitrate Pro (Part of the Algae Control Pro Multi-Test Kit) - 24 ppm
Seachem Nitrite & Nitrate Multi-Test - 10 ppm (Note: This test kit came with a reference solution of 10 ppm so I did the test a couple more times comparing my tank water with the reference solution which is ironically also 10 ppm). Take a
look. The one in the middle is the reference solution. I did it a couple times. It's more like 30 or 50. I'll reach out to Seachem support as well since there isn't really an expiration date on their kits and see what they say.
Salifert Nitrate - Between 10 ppm and 25 ppm (more on the side of 25)
JNW Direct Aquarium Test Strips - 0 ppm
Onthink Test NO3 - 12.5 ppm
NYOS Nitrate - 10 ppm
Tropic Marin Compact Lab - 2.5 ppm
What does this tell me? Testing for Nitrate is extremely difficult. I'm going to have a couple co-workers come over and test all of these again and see what they come up with for comparisons. API has NEVER been anywhere near accurate so I'm not sure using the bot for this makes sense. So even though it is in Beta I'll try the Tropic Marin product for Nitrate and then compare again.