I have had my Tuff Spa for a little over nine months. It stopped working and I called the place I purchased it and they said they would call Tuff Spa's and get the work order approved.
I didn't hear from them and so I called Tuff Spa's directly. They said they would have a spa repair company call me. The Tuff spa representative kept asking me the serial number I told him it was up against the wall and I have my receipt for the spa. He was hemming and hawing about the warranty. I told him to look it up under my name. Well he said he would rather have the number.
Anyway to prevent the water from turning green I added extra sanitizer. I knew they had to have water in it to repair it. The repair company came out a week later. He opened it up and said that the warranty was probably void because there was too much sanitizer. I told him the water would be green it I didn't put extra sanitizer. He took off the panel and everything looked brand new. He said the heater was corroded because of to much sanitizer. I put the sanitizer in it after it stopped working.
These people are rip off artist. You know you can't trust anyone when they kept looking at the receipt and thinking it wasn't real. He kept asking me the date I bought it and saying it was a 2016. That was when it was manufactured. I told him that I bought it January 17, 2017. That was when it was delivered.
I have pictures and I'm going to contact the BBB. I had to pay for the service call and a new heater.