Intex Lazy Spa - Used!

Intex lazy spa. Absolutely lovely, selling because I find hard to maintain - It works perfectly when in action , however it beeps after a day of use, I’m told this is because you’re meant to change the filter , however I haven’t worked it out. Comes with bits, filter , lid , chemicals , no labels on the bottles (brand new they’re around £30 for a set) Would love to keep it but really don’t know what I am doing , as you can see. Will be take it as you see it. Will give it a clean if it gets bought.

Questions welcome PayPal No returns. Have stated it beeps after a day of use and I can’t work it out myself, would be good if it went to somebody who was able to easily solve these problems ..