"We  during Covid lockdown, were at a loss to keep our children entertained, so we, like many others, bought a hot tub. We learned the basics of keeping the tub clean, but gradually, the children used it less and less. To be honest, we  wasn't really sure if it was something we were doing or weather the children had got bored and moved on with their lives so weren't using the hot tub so much. Over the next few years, our family went through a few challenges: firstly health scares, and finally a divorce. as a poor homeowner with a very green hot tub i approached pools tubs and spas one lunch time at the local pub, asking if he could come over and look at our very green hot tub and tell me whether it could be saved, or he could quote for removal, as it was just a social  question we  rapidly avoided. he went over and peered into the green, rather smelly water. Yes, of course, he replied i can save it; let's book you in for a full service and water conditioning. A few days later, he  came over and  started the green  hot tub service; all went well, the sides cleaned up, the water now clean, safe, clear."" wow its a different tub  i use it all the time now "