Water Level Detect Sensor For Rain Barrel Using PVC

I have a rain barrel that I need to monitor the water level with a water level switch so that I can stop my pump from pumping water if it gets too low. I've found several switches, however, I need to submerge my switch into the water to accurately detect the level, and I was thinking about using PVC (with soviet cement) to hold the switch in place as well as protect the electrical wires and run them back to my microcontroller that I will program.

I know PVC can be used for potable applications, but it seems the internet has mixed views about the long term effects of PVC contaminating water.

Was curious about what others are doing or using, and your thoughts about PVC being submerged in a rain barrel year round.

Link to the switch type:
https://www.amazon.com/Madison-M7700-Plastic-Side-Mounted-Pressure/dp/B009093LJO/ref=sr_1_5?dchild=1&keywords=madison+liquid+level+switch+side+mount&qid=1613171854&sr=8-5

Thought about using a float switch?
There is only a float in contact with the water and no electricals near the water.
What do you use the water for and how big i the barrel?
4 stage float
low level off
lever switches
sump pumpos
measurement floats