New construction pool with attached spa. I turned the spa on (no heat), to get the plaster dust out. The water was level with the back edge of the spillover, after. About 30 mins, i noticed the water level dropped 2 1/2" and I turned it off when it go below the tile. If the valves are in spa suction/spa return, why is the water level dropping? Where is it going? I am doing the bucket test in the spa, and marked the levels, I will not run the spa or spill over this weekend.
Very odd, the system was pressurized during construction. I always went up or down a 1-2 lbs during the day but was under at least 26-28lbs when plaster was done. The valve are open/closed the correct direction. Spa bypass is off.
I am not going to go crazy as assume underground pipe leak but this does not give me a "warm & fuzzy" feeling.