Register free!


Reply
 
Thread Tools   Display Modes
  #21  
Old 03-14-2010, 02:12 PM
Kiril Kiril is offline
LawnSite Fanatic
 
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,316
Quote:
Originally Posted by Mike Leary View Post
We like 1/4" per foot drop.
So ..... 25 inch elevation change per 100 feet?

Technically drain line grade and size should be determined on potential maximum flow and required flow velocity. That said, in this case the OP can just work with percentages to make it simpler.

Code dictates grade requirements are 5% minimum slope from foundation (6" over 10 feet) and 12" + 2% lot grade from top of foundation to curb. That said, your cities building department will tell you exactly what is required and/or recommended. Probably the safe bet is set the drain line grade to 1-2% minimum slope from your collection basis to discharge point. .

Last edited by Kiril; 03-14-2010 at 02:18 PM. Reason: correcting feet to inches
Reply With Quote
  #22  
Old 03-14-2010, 02:18 PM
hoskm01's Avatar
hoskm01 hoskm01 is offline
LawnSite Fanatic
 
Join Date: Aug 2005
Location: Phoenix Metro
Posts: 5,694
Quote:
Originally Posted by Kiril View Post
So ..... 25 foot elevation change per 100 feet?

.



1/4" drop per foot of line, over 100 feet would be 2.1 feet of drop, not 25.


1/4" not 1/4.
__________________
Crayons taste like Purple
Reply With Quote
  #23  
Old 03-14-2010, 02:21 PM
Mike Leary's Avatar
Mike Leary Mike Leary is offline
LawnSite Fanatic
 
Join Date: Mar 2007
Location: Cactus Hug, Arizona
Posts: 20,565
I think Kiril is hitting the sauce a little early.
Reply With Quote
  #24  
Old 03-14-2010, 02:28 PM
Kiril Kiril is offline
LawnSite Fanatic
 
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,316
Quote:
Originally Posted by hoskm01 View Post
1/4" drop per foot of line, over 100 feet would be 2.1 feet of drop, not 25.


1/4" not 1/4.
Yes .... I corrected it.
Reply With Quote
  #25  
Old 03-14-2010, 02:31 PM
Kiril Kiril is offline
LawnSite Fanatic
 
Join Date: Jun 2007
Location: District 9 CA
Posts: 18,316
Quote:
Originally Posted by Mike Leary View Post
I think Kiril is hitting the sauce a little early.
Maybe I can hop in my helicopter and come drink some of that piss with you while we put a better shine on the twinkie together.
Reply With Quote
  #26  
Old 03-14-2010, 02:47 PM
hoskm01's Avatar
hoskm01 hoskm01 is offline
LawnSite Fanatic
 
Join Date: Aug 2005
Location: Phoenix Metro
Posts: 5,694
Quote:
Originally Posted by Kiril View Post
Yes .... I corrected it.
Not quick enough...
__________________
Crayons taste like Purple
Reply With Quote
  #27  
Old 03-14-2010, 03:21 PM
ARGOS's Avatar
ARGOS ARGOS is offline
LawnSite Silver Member
 
Join Date: Sep 2007
Location: On the road again.
Posts: 2,814
Quote:
Originally Posted by Kiril View Post
your cities building department will tell you exactly what is required and/or recommended. Probably the safe bet is set the drain line grade to 1-2% minimum slope from your collection basis to discharge point. .
I bet if the OP called the city or county building dept they will say 1/8" per foot minimum.
Reply With Quote
  #28  
Old 03-14-2010, 03:23 PM
ARGOS's Avatar
ARGOS ARGOS is offline
LawnSite Silver Member
 
Join Date: Sep 2007
Location: On the road again.
Posts: 2,814
Quote:
Originally Posted by Wet_Boots View Post
If there are lots of boulders in the lawn, the corrugated stuff is invaluable.
Our practice is to go through boulders. The second we hit a boulder we go to T&M if the job wasn't already T&M. Of course for a homeowner this may not be possible.
Reply With Quote
  #29  
Old 03-14-2010, 03:25 PM
ARGOS's Avatar
ARGOS ARGOS is offline
LawnSite Silver Member
 
Join Date: Sep 2007
Location: On the road again.
Posts: 2,814
BTW Fimco. I had half a buttered bagel and a cup of OJ.

The kids had a loaf of bread with jam and butter from the Fimco machine. Everyone except my oldest son that is 15. He ate a loaf to himself.
Reply With Quote
  #30  
Old 03-14-2010, 03:53 PM
Wet_Boots's Avatar
Wet_Boots Wet_Boots is offline
LawnSite Fanatic
 
Join Date: Mar 2005
Location: metro NYC
Posts: 40,371
I had grits and sausage and coffee.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump






Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 02:03 AM.

Page generated in 0.07971 seconds with 7 queries