Using this water connection adapter is easy. First, find the standard 1/2' BSP hose fitting in your kitchen or laundry basin tap area. Then, connect the adapter to this fitting. Next, simply push the 3/8' plastic hose into the outlet hole of the adapter until it locks and seals. When using, make sure the hoses are not kinked as it may affect the water flow. If you notice any leaks, check if the hose is properly inserted and locked. For maintenance, periodically inspect the adapter for any signs of wear or damage. You can clean it with a mild soap and water solution to keep it in good condition. With this adapter, you can enjoy a reliable water connection for all your 3/8' water feed hose applications.