hi, I dont know wether I should be here or plumbing but I bought a brass tap and hose connector from travis perkins by 4trade with water stop. Now I have never heard of a water stop on a hose connector before,but it works perfectly It lets absolutely no water through making the hose useless. what am I doing wrong?It looks brilliant but apart from drilling through the middle how do I get to use the hose? can anyone please shed some light on this