User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.0.1) Gecko/20020823 Netscape/7.0 (nscd2)
Maybe the hot water heater is plugged with mineral deposits. Means you
need a new one ;( ??
Also if you have a by pass, try all possible valve combinations incase t
they aren't really shut or open.
Daisy