Hey gang, this is an odd one for me. I've noticed some mysterious priming events with my Jandy VSFHP185DA2A. My schedule is as follows:
12:00 am - 4:00 am: OFF
4:00 am - 12:00 pm: 2000 RPM (Filter)
12:00 pm - 4:00 pm: 2350 RPM (Skim)
4:00 pm - 12:00 am: 2000 RPM (Filter)
I have a fountain hooked up now so the changes in pump speed are very visible. The fountain will be at one of three heights based on the speed. On three occasions, I've noticed the fountain unexpectedly at the 2750 RPM height which is the priming speed. When I check the app at this time, it shows the pump as "priming". After a few minutes, it returns to the normally scheduled speed. All three observations were around 4:45 pm, which is forty-five minutes after the pump slows from 2350 RPM to 2000 RPM. On the second occurrence, I was looking right at the fountain at the time. There was nothing unusual at the time, the fountain went straight from the low height to the high height with no sag beforehand. In all cases, there were no bubbles at the returns and no evidence of a leak or loss of prime. Flow at all three returns is healthy at all times. The water level is normal, with no chance of sucking air at the skimmer. The first two occurrences had DE in the sand filter, but I backwashed and did not replenish it prior to the third occurrence. The sand filter pressure has remained steady at 12 PSI since the backwash.
I've not observed it occur at other times, but that could be random chance. The fountain is new, but I think it is acting as the alert mechanism and not the cause. It's entirely possible this has been occurring for a while unnoticed.
I'm at a bit of a loss here, any ideas?
12:00 am - 4:00 am: OFF
4:00 am - 12:00 pm: 2000 RPM (Filter)
12:00 pm - 4:00 pm: 2350 RPM (Skim)
4:00 pm - 12:00 am: 2000 RPM (Filter)
I have a fountain hooked up now so the changes in pump speed are very visible. The fountain will be at one of three heights based on the speed. On three occasions, I've noticed the fountain unexpectedly at the 2750 RPM height which is the priming speed. When I check the app at this time, it shows the pump as "priming". After a few minutes, it returns to the normally scheduled speed. All three observations were around 4:45 pm, which is forty-five minutes after the pump slows from 2350 RPM to 2000 RPM. On the second occurrence, I was looking right at the fountain at the time. There was nothing unusual at the time, the fountain went straight from the low height to the high height with no sag beforehand. In all cases, there were no bubbles at the returns and no evidence of a leak or loss of prime. Flow at all three returns is healthy at all times. The water level is normal, with no chance of sucking air at the skimmer. The first two occurrences had DE in the sand filter, but I backwashed and did not replenish it prior to the third occurrence. The sand filter pressure has remained steady at 12 PSI since the backwash.
I've not observed it occur at other times, but that could be random chance. The fountain is new, but I think it is acting as the alert mechanism and not the cause. It's entirely possible this has been occurring for a while unnoticed.
I'm at a bit of a loss here, any ideas?