Ridiculous return policies

I bought a Kreepy Krauly Bullshark Pro a week ago on Tues 11/03/2025 The machine is faulty, it was installed correctly, it doesn’t clean the bottom of our pool, it is constantly going to the top, sucking in air which is detrimental to our pool pump. I tried to return the kreepy at your Woodmead store, only to be told that it cannot be returned as it’s been in water. ***? It’s actually laughable. This is what it’s meant to go in. Am I meant to test it on my lawn before putting it in my pool? I was told I had to let them send it off for an assessment (14-21 days) - sorry, who would be cleaning my pool in that time? Or I could take it myself. Again, excuse me? I have a full time job. They then said 7 days (still unacceptable) which I agreed to but they would only test the head not with the pipes. NOW surely if a product is faulty and your ridiculously have to go down this route, you would test the ENTIRE product - pipes and all? I refused and am now sitting with a useless product bought brand new a week ago on one of your salesman recommendation. ALSO, It comes with 5 pipes and 2 short pipes. It doesn’t reach from one end of the pool to the other which I why I had to get extra pipes. This level of service is such a joke. Seriously. A pool product goes in water. I hope customer service has decency to respond.