Any tips and advice on irrigation systems welcome. With no possibility of an outside tap my set up runs off a water butt pump and an indoor timer plug. It did The job perfectly over a week with alternate daily watering and checkups by the neighbour to ensure it was working as it should. My only issue was the syphoning effect which meant that there was always water running through the system even when the pump was off. Got in touch woth hozelock and they sent me this to stop the issue.