Review on 🚗 Toyota Lexus 85321-28020 NEW Koauto Wiper Washer Windshield Check Valve: A Reliable Solution by Jeremy Flint

So I had a 2015 Toyota Corolla and this part seems to be a common failure point. I read that there is some kind of valve in this thing that fails after a while, in my case 4.5 years. My brother has the same car and model and he messed it up too. As a result, one of the washer jets produces almost no liquid while the other jets spray more than usual. Work. Each nozzle is connected to this part with a rubber hose, so I swapped the hoses around and tested. As a result, the opposite nozzle is now spraying more than usual while the other liquid is jetting. So I ordered this product and replaced it. This immediately fixed the windshield spray system. Now a good symmetrical spray from each nozzle.