Valves

When the valve is becoming hard to press inside, inflexible when opened or the stopper is becoming too small to fit properly there is the time for to let to soak a new plasticizer inside. Using paintbrush apply thin layer from the outside of the closed valve and let it soak for about two or three days. It works magically, the body of the valve is much softer again and the stopper is bigger so the valve safer stays closed.