plumbing regulations Home › Forums › Public Forums › General Plumbing › plumbing regulations This topic has 2 replies, 3 voices, and was last updated 23 years, 10 months ago by SylvanLMP. Viewing 2 reply threads Author Posts 13 Mar 2001 at 10:59 pm #274762 MasterPlumbersKeymaster does a new cistern/washbasin/bathtub cold supply has to come directly from the water mains supply for domestic situation? 16 Mar 2001 at 8:55 am #290403 GuestParticipant Where else did you intend getting it from ?? 18 Mar 2001 at 7:19 pm #290404 SylvanLMPParticipant f there is a municipal water supply Normally yes you must use it BUT some localities do allow the use of a well for water supply if you can prove 1- The water in this well is of potable quality 2- It is a hardship to use the municipal water due to excessively long runs of water main piping. Check local codes by the way Rain water is NOT normally considered potable water do to air pollution 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