Just had vaillant 637 and Unistor 260l installed. Pressure is excellent. Finding long delays (40 secs) to get water to bathroom tap as tank is 10 meters away. Pipes are in concrete and water seem is warmish when first opened follwed by cold (from the pipes in concrete) and then hot water. Is there anything that can be done? Also hot water coming out is milky so I guess this means there is air in the water- how is this fixed?
Thanks
ARH.
Thanks
ARH.