Domestic hot water re-circulating pump Home › Forums › Public Forums › General Plumbing › Domestic hot water re-circulating pump This topic has 2 replies, 2 voices, and was last updated 23 years, 8 months ago by Guest. Viewing 2 reply threads Author Posts 19 May 2001 at 10:02 pm #274959 Amy Paddock Where in the system should a domestic recirc pump be installed?Is it better to set on a timer or a demand switch?Tom 20 May 2001 at 12:36 am #290829 GuestParticipant The timer shuld be set to turn off automaticly after the last person leaves the building and fifteen minuts befor they com in. The demand switch shuld be turn on by the firs peron to return. Most peple are lazy tho and just let it run all the time. 20 May 2001 at 2:44 am #290830 GuestParticipant Here try this site http://www.masterplumbers.com/plumbing/plumbviews/1999/rec_pump.html Author Posts Viewing 2 reply threads You must be logged in to reply to this topic. Log In Username: Password: Keep me signed in Log In