dosmatic microdos 2.5

[DavidCampen]

I found my notes from last year when I was trying to calibrate the MicroDos 2% that I had bought.

Setting Measured ratio
1:50 1:60
1:66 1:70
1:100 1:120

Also, I noted that "additional testing shows that the MicroDos does not function reliably against a source pressure of 90 psi; it seems to function OK at 40-50 psi."

Also, with an inlet pressure of 90 psi it leaked and I could not stop the leak.

I like my MiniDos 2.5% but I was disappointed with the MicroDos. I now use the MicroDos for injecting quaternary alkyl ammonium disinfectant into a waste stream where I am not concerned about reliability.

Edit:
I just checked on my MicroDos and it does not seem to be working at all. The MiniDos works well; I check its calibration frequently, the MicroDos is extremely disappointing.