Hi. I have a Multikwik TRC 1825 torbeck cistern which appears to have developed a fault in the side fill valve. I removed the cover to have a look and noticed that when the cistern is filling up, the valve spouts out water upwards and outwards, which in turn, must hit the plastic cistern cover and then proceed to run out and down the cistern, onto the floor. Surely the water from the valve needs to point downwards? Is the valve fixable, or do I need to renew? Thanks.