What does it mean with the number 7 and buffer flash during calibration?

Nice

Just an idea! Relocate the pump near to chemical storage tank and shorten the suction tube. This will help to prime the pump.

I like the foot valve parts layout, keep up the good work. Looking forward to watching the next video!

Well done! Hope the PAA probe is back to its normal operation.

Can you make a video showing different ways in how degassing the pumps?

There is slope and offset error is not showing...We have to write in our calibration sheets....what should I have to do?

Hi. I just have 4.00 and 7.00 buffer water. Can I calibrate without 10.00 buffer water?