A quick update on the Costco (Hydrospa Tub) I installed in January.
The shipping company found and delivered the cover lift, which they had forgotten to deliver. Installation was easy, and it performs well. The cover lock downs work well and maintain a good cold seal
The tub continues to perform faultlessly. Absolutely no problems at all. We love it. The four major groupings of jets are diverse and excellent, although we tend to most enjoy just soaking with no pumps or air. The foot jets are great as well and are greater in number than any of our friends tubs.
In below zero weather, say 20 degrees, the temperature wil drop about 2 degrees (104>102) over about 40 minutes with the pump on low.
The ozonator appears to work well. The chemistry is stable and I ony add/check chemicals about every 10 days. No scum or stain problems.
Based on actual year to year consumption. The tub appears to cost about $50 a month to operate in February. Even running the twice daily automatic cycles which I've let run.