How do I put probe into Ca reactor?

[mark]

Do you really need to put the probe in the reactor?

Have the effluent of mine going into a small container (pill type container that Crazy-glue came in) sitting over sump. Probe sits in that. If want to measure pH of system, just lift the probe out and drop into tank.

I did have some plastic strain relief connectors used to waterproof cabling into enclosures that I was going to use but thought why.

[BMW Rider]

I used a 1/2" john guest type fitting. It has to be drilled out to let the probe pass right through. You just pop out the retainer ring and o-ring, then run a drill bit through, then put it back together. Oh, and you need to make sure you heve the fitting that has the 1/2" np threads so its large enough for the probe to pass through.

Having the probe in the reactor is not mandatory, but I have noticed it is much more accurate to control.