I have used a good quality Peggler 15mm gate valve. However, the ta leaks a bit even when the valve is fully shut.
Is it that I should have installed a stopcock instead of a gate valve or is it that the gate valve is deffective?
I know that stopcoks have an arrow to install them in the righ direction, the gate valve did not have.
As a general question, what is the difference between stopcocks an gate valves. Is it that the stopcock withstands higher preassure?