We originally got our hot tub ordered from SUNDANCE SPAS and they are always very kind and friendly when ever I call them with a question or concern about the hot tub. Because this is our first hot tub we know very little and they help me over the phone when I need to change filters or settings. We can take samples of our water in and they check it for free and give us a print out of what is happening in the water and if anything should be adjusted. They make you feel like family and I would recommend them to everyone who is interested in a hot tub.