Help. We have a relatively new 20.63.1 using a BEST water filter and Flat Out drinking water hose. We dont use the tanks - mains water only. There is a nasty plastic taste to the water - if we let the tap run for a minute or two it goes away. Added to that - we have poor water pressure (an earlier thread might have given me the solution to that problem). Has anyone had taste problems with the flat out hoses ? It appears to be worse on hot days - so possibly from the hose laying in the sun ?? Any wise words would be appreciated.