In the world of unusual, my Pentair VSP, doesn't want to prime after I've used the Spa when trying to switch back to pool mode. All valves/actuators seems to be operating normal. While I can go from pool mode to spa mode without issue, when I switch back, pump tries to prime but no water coming from skimmer/main drain lines into pump pot. VSP eventually shuts down to protect itself. Only about 1/2 inch of water in bottom of pump pot. When I pour about one quart of water in pump pot, and restart pump, it begins to prime pulling water from both the main drain and skimmer lines normally.
This process was working without a hitch in both directions ie. switching from pool to spa and then back to pool.
Any ideas/thoughts?
This process was working without a hitch in both directions ie. switching from pool to spa and then back to pool.
Any ideas/thoughts?