hpt9

In your tub, set in F1 mode, that circulation pump should run 24/7. (the only thing that would stop it is "summer logic" where if the tub gets 2 degrees over your set temp, it assumes it's a hot day and the circ pump is generating enough heat to bump up the temp) The circulation/heating is separate from your filtration in f1 mode, so no it will move the water around, but will only kick on the heater if the temp has fallen. Unless you are jumping into the tub filthy F1 should be plenty for your tub. Thanks for the pointer. I believe summer logic is the answer. I live in Charlotte and it has been blazing hot here the past coupe of weeks. In the summer the spa is set at 95 degrees. The spa is maintaining a 98 degree even when set at a lower temp.

Also - Make sure you clean your filter as well. Use TSP, you can get it from Home Depot or Lowes in the painting section. I perfer it to the non TSP cleaners when you decon stuff - I tried to use a happy enviro friendly one and nothing came out. I put it into a TSP solution and it got WAAAAAY cleaner. Make sure you rinse it out with your showerhead or a spray nozzle from your hose to get all the TSP out before you put it back into the water in your spa. I use my pressure washer to clean my spa, and pool, filters periodically. This makes them look brand new again. This practice is frowned upon, but if you're careful and use a wide tip spray nozzle you should be okay.

The make and model is listed in the post (2007 Sundance Hartford with optional circulation pump). I checked the owners manual and the spa setting: it is set in standard mode F1 (1 hour of filtration per day, 30 minutes every 12 hours). Does this mean the heating element is also activated during the filtration cycle even if the spa it operating at the set temperature? Another question comes to mind: is this enough filtration? The spa is used three to four times per week.

This may sound like a real novice question, but here goes...How can I determine if the circulation pump is running? It seems as though the only time the pump operates is when the heater is on. Is this the only time it is suppose to run or should it be on continuously? Any input would be appreciated. Model: 2007 Sundance Hartford (with optional circulation pump).

I looking at purchasing a used HS Grandee. The tub is two years old and is currently not in use. The owner stated that the tub came with the house when they purchased it a year ago and they have never used it. Of course the owner is willing to fill it and demonstrate its operation. What should I be looking out for on a tub that has been sitting empty and idle for over a year. My main concern is that the spa was not properly winterized and the plumbing is damaged. But what about the pumps? Could they be damaged from lack of operation?? Any guidance will be appreciated.

I'm considering buying a used Caldera Martinique spa (2 yrs old). Any input (good or bad) on this brand/model? Thanks....

I am interested in purchasing CSXi80 from Costco, but have concerns about energy efficiency as the tub and cabinet does not seem to be well insulated. Does any one have any input on this topic? Thanks...