We have a 70k gal lap pool, and we currently have two Circupool classic SJ55 systems in parallel. The system has worked well for almost 5 years. Last year we replaced one of the cells with an OEM cell, and encountered a new problem: to get adequate water flow thru the cells, we have to keep the pump running at 3000 rpm, instead of the 1500-2000 rpm that used to be sufficient. (Circupool has redesigned the built-in flow sensor mount in the cell, resulting in a higher position in the cell. While probably ensuring better water coverage of the plates, it means that only a *very* small air gap/gas bubble is tolerated before the cell shuts down.)
Running the pump at this speed is expensive, so we are contemplating replumbing the cells so that they are in series, rather than parallel. This will roughly double the water flow at the same pump speed. Since each cell has its own controller, we anticipate running the 2nd cell in the series most of the time, and only running the lead cell when necessary. This should minimize the concerns I've seen in other posts on the topic, i.e. decreased salinity for the 2nd cell, and bubbles interfering with water contact with the plates.
Anybody else try this? Or are there other things I should be aware of?
TIA!
Running the pump at this speed is expensive, so we are contemplating replumbing the cells so that they are in series, rather than parallel. This will roughly double the water flow at the same pump speed. Since each cell has its own controller, we anticipate running the 2nd cell in the series most of the time, and only running the lead cell when necessary. This should minimize the concerns I've seen in other posts on the topic, i.e. decreased salinity for the 2nd cell, and bubbles interfering with water contact with the plates.
Anybody else try this? Or are there other things I should be aware of?
TIA!
