Experiencing a problem with the toilet filling up slowly after flushing. Sometimes it fills up slowly on it's own. Other times is starts of filling slowly, then builds up to full flush. However when it fills slowly, if I turn on the cold water tap to the sink for a few seconds the toilet starts to fill up at regular speed. Does anyone have any thoughts as to what the problem may be? This has only come on in the last 24 hours.
Thanks in advance