Need Pump Setup Help - Plumbing - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing


Thread Tools Display Modes
Old 07-12-2008, 11:32 AM   #1
Join Date: May 2007
Posts: 119
Rewards Points: 75

Need pump setup help

Ive bought a liberty water pump for my darkroom sink. Im trying to set it up and I have a question. Where the pvc goes into the pump it reads 1 1/2" inlet. SO I tried to put a 1 1/2 inch pvc pipe in the hole and it is too big. Am I missing something? What do I need? Any advice appreciated. I have a check valve that I bought and also have it vented properly, now I just need advice on how to atatch the inlet and outlet PVC.

This is a pic of the pump that another photographer sent me of his set up to help with my setting it up.


Last edited by pesphoto; 07-12-2008 at 12:08 PM.
pesphoto is offline   Reply With Quote
Old 07-12-2008, 02:44 PM   #2
Doing it myself
Alan's Avatar
Join Date: Apr 2006
Location: Crescent City, CA
Posts: 3,798
Rewards Points: 2,086
Send a message via AIM to Alan Send a message via MSN to Alan

I could be wrong, but i believe DWV PVC and water PVC are different diameters. . . .


Journeyman Plumber
Alan is offline   Reply With Quote
Old 07-12-2008, 02:45 PM   #3
Join Date: Mar 2008
Posts: 149
Rewards Points: 75

Is the hole threaded? if it is double check the fitting size. It should be marded on it.
BillyD is offline   Reply With Quote
Old 07-12-2008, 10:46 PM   #4
Licensed Master Plumber
mstplumber's Avatar
Join Date: May 2008
Location: Atlanta, GA USA
Posts: 211
Rewards Points: 150

DWV and Pressure pipe are the same OD (outer diameter). "Tubular" pipe, such as slip joint traps and tail pieces are made of, is a different diameter. But if the inlet is threaded, you will need an 1 1/2" male adapter to screw in and it will be a little smaller than the pipe itself, due to the threads being cut (actually molded with most plastic) into the pipe. Liberty's website shows an 1 1/2" model and a 2" model but nothing smaller.

The picture looks like 1 1/2". It also shows both an "S-trap" and a double trap, neither of which are legal or necessary. The trap at the bottom is all you need.

Check out my goofy video for my new toilet repair book.
mstplumber is offline   Reply With Quote

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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
sump pump issue mikehende Plumbing 15 02-15-2008 06:36 AM
Foundation drain and sump pump slatergrl Plumbing 3 02-10-2008 09:36 AM
sump pump continuing running deck hand Plumbing 2 01-16-2008 04:35 PM
Well pump issue-should I be concerned? Mikedks Plumbing 8 10-08-2006 10:42 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1