Return to the Plumbing Forum | Post a Follow-Up

 o
CalGreen Shower Restrictions - Need Diverter Advice

Posted by montel (My Page) on
Tue, Jun 28, 11 at 13:03

So in California for 2011 we now have to follow new CalGreen water conservation rules shown below:

4.303.2 Multiple showerheads serving one shower. When single shower fixtures are served by more than one showerhead, the combined flow rate of all the showerheads shall not exceed the maximum flow rates specified in the 20 percent reduction column contained in Table 4.303.2 (2.2 gpm) or the shower shall be designed to only allow one showerhead to be in operation at a time.

Exception: The maximum flow rate for showerheads when using the calculation method specified in Section 4.303.1, Item 2, is 2.5 gpm @ 80 psi.

----------------

Our Problem is that we have a 2 person shower in our master bath - it is a very large shower designed for 2 users at a time. However, strict reading of the rules means we could only have two 1.1 gpm heads on at one time or just one single 2.2-2.5 gpm showerhead period!

We would like to have at least two controlled shower-heads - Our town is pretty strict though. I have seen one web posting about San Francisco allowing two 2.2 gpm heads if it is multi-person shower, and the heads are controlled by dedicated valves.

We would really like an overhead rain shower and two heads on the wall but can't find diverters that control 1,2,3 outputs independently...

Delta has a diverter that does output to 1, 1&2, or 2 - this wouldn't work for us...


Follow-Up Postings:

 o
RE: CalGreen Shower Restrictions - Need Diverter Advice

Anyone have ideas?


 o
RE: CalGreen Shower Restrictions - Need Diverter Advice

Vote differently? It is what it is until you force a change. Sorry


 o
RE: CalGreen Shower Restrictions - Need Diverter Advice

The solution is simple, Put separate controls on each end of the shower enclosure, which would then define it as two showers in a common enclosure. The only caveate is that you would then have to compute the drain load as two showers or 4dfu's instead of 2.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Plumbing Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here