I have used my gardiners slx-18 3 times since xmas as I only clean my own house. I did not purchase a univalve as some members said it would be a overkill for just my house but I did buy a tubeless kit from exceed kit and overall be happy with setup. However unknown to me my stepson got me a univalve for xmas but I never fitted it. After constant flea in ear from wifey and s/son I decided to fit it and boy am I having problems, like a lot of members. I fitted it with the blue exceed hose which is my pole hose and tried it out. univalve works perfectly when pole is closed fully but put extend pole to 1st floor which is under 18 feet and boy do I have problems turning on/off. I thought it was off and turned brush around to use scraper and got soaked. My feeling is the valve works ok but the blue exceed hose at 18 feet is just too stretchy so may try someone’s orange hose or gardiners green hose. I only need 10 meters so not expensive to experiment