I have a 580 gallon Artesian hot tub. Had it for about 45 days. I use a bromine floater to sanitize the water and add a non chlorine shock weekly. The product is "Leisure Time Renew" non-chlorine Shock oxidizer. The Spa dealer also recommended weekly use of a Swimway product called "Natural Enzyme" and second Swimway product called "Clarifier" which describes itself as "a cationic polymer flocculent designed to coagulate and floc suspend solids and minerals." Every thing was fine until today. I added the shock with jets running, waited 5 minutes then added natural enzyme, waited a few minutes and added clarifier. After a few minutes there was a small amount of foam on the surface which congealed into a light brown goo. It was extremely sticky and formed a ring at the water line that was very difficult to clean. Any thoughts as to what product caused this reaction?
Second question ion is testing kit. The test strips seem subjective at best as to what levels your water is testing. What is the best kit for a spa (don't care what it cost)?
Thanks so much for the help.