dual sump pumps - size of discharge pipe

dawnrNovember 17, 2011

I need dual sumps in same pit and am installing (2) 1/2 HP Zoeller or Stormpro (hand dug foundation. Big water issue. Not your usual basement). If I tie them in together, what size PVC discharge pipe in basement? Zoellers are 1 1/2 inch so would 2 inch PVC line be ok if the two are tied together? Someone recommended 2 separate discharge lines in case one gets clogged but i never had a line get clogged in basement. If you install a bigger line (3 inches), does this have any effect?

Thank you for reporting this comment. Undo
lazypup

Check the output port on your sump pumps..most of them have a 2" port with a reducer that will permit connecting an 1-1/2" line. For peak efficiency they should be connected with the largest pipe size that the pump is set up for.

The standard rule of thumb is if you increase the size of a pipe by one nominal trade size you double the capacity..so if your pumps do in fact use 1-1/2" you could combine them on a 2" line.

If they will accept a 2" line then combine them on a 3" line.

Make sure you have a 1/4" per foot pitch from the highest point of the line above the pump to the point were it exits the structure.

    Bookmark   November 18, 2011 at 12:13AM
Sign Up to comment
More Discussions
Under counter water filters…again
I've lurked here for over a year and have learned so...
motherwallace
Fleck 9100 SXT Programming/Settings
I am finally installing my new Fleck 9100 SXT!!! Thanks...
rss1978
Salt-free water conditioning
Hi all, Considering installing a water softener in...
tucker_troy
Electric Water Heater Problem
I have an electric water heater; about a month ago...
aeharris63
Water softener decision for Austin, Texas city water
I want to better protect my plumbing from wear and...
ivaniphone
Sponsored Products
Holtkoetter | Ceiling Fixture No. 5231/3
YLighting
15741BKT Textured Black 8.5 Watts Narrow Kichler LED Landscape Light
EnvironmentalLights.com
Remlo Thermostatic Lauan Shower Panel With Hand Shower and Two Body Jets - Lauan
Signature Hardware
Possini Euro Chrome Light Bulb Cluster Chandelier
Euro Style Lighting
Jute Table Lamp Base
Cost Plus World Market
Wall Mounted Round Frosted Glass Soap Dispenser With Gold Mounting
TheBathOutlet
Artecnica Square Phrena Pendant Lamp
ModernistLighting.com
Draping Leaf Gold Leaf Table Lamp
Lamps Plus
© 2015 Houzz Inc. Houzz® The new way to design your home™