For sure it’s your low point drain.
Whether it’s a loose pex drain valve or a pin hole in the tubing, it’s a simple repair. Find where it’s spraying from, cut the clear pex tubing above the leak,
and replace with a 1/2” pex compression valve like this
https://www.acehardware.com/departme...valves/4166120
Good luck. Let us know how you made out.
__________________
Tony & Lynne
Whidbey Island, WA
2021 Sunset Trail SuperLite SS212RB
2019 Ford F-350 FX-4 Crew cab, 6.2L gas