I just moved in this house with a pool. There is a hot tub/spa next to the pool. The pool system is set to circulate every morning and I see water flowing from the hot tub to the pool during that time.
I observed a strange phenomenon this afternoon. Between 1PM and 4PM, the spa/hot tub lost its water and it is now level with the jets that would normally push water inside the spa as if it has drained through them.
Any ideas what could be the cause and how to fix it?