Sump Pump Well/pit Construction - Plumbing - DIY Home Improvement | DIYChatroom

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


Thread Tools Display Modes
Old 03-09-2011, 12:44 PM   #1
Join Date: Mar 2011
Posts: 1
Rewards Points: 10

sump pump well/pit construction

I have a sump that sits on the floor and shuts off when water level gets down to 1/4 inch.... Works well for my needs in an unfinished large basement that has flooded only twice in 20 years, from a rising water table. Cleaning up that 1/4 inch is a real pain however.
Should I dig out a pump well through the slab or only chip out a depression for my pump. If I need to construct a deep well or pit, should it be cement lined or pouris to the gravel under my slab allowing water into the pump prior to entering the basement.
Any thoughts are appreciated..


BobMul is offline   Reply With Quote
Old 03-09-2011, 12:58 PM   #2
Join Date: Nov 2007
Location: Nashua, NH, USA
Posts: 7,447
Rewards Points: 2,996

sump pump well/pit construction

If the sump sits on the floor and can be emptied down to 1/4 inch then (theoretically) the pump can never bring the level of water flooding the basement down below 1/4 inch.

A pit dug below floor level should have holes to let water up into it. The sides of the pit cannot be bare dirt or gravel but you can use a plastic liner surrounded by gravel or have brick or concrete block or poured concrete sides. If you have a layer of not so fine gravel under the basement floor slab, you might not need to install collector pipes (a French drain) under the floor requiring digging of trenches.


Do you get coverage you can count on? From the bag of fertilizer? From your lawn sprinklers?

Last edited by AllanJ; 03-09-2011 at 01:04 PM.
AllanJ is offline   Reply With Quote
The Following User Says Thank You to AllanJ For This Useful Post:
BobMul (03-09-2011)

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 "pit falls" bubbler Plumbing 6 03-09-2011 09:45 AM
Sump pump pit water level --- problem de12 Plumbing 49 02-27-2011 02:42 PM
Yet another sump pump / pit question SeanFlynn Plumbing 0 01-24-2010 02:07 PM
Outdoor Sump Pump.... JRoot Plumbing 6 07-04-2008 07:35 AM
Sump pump re-hab mpking Plumbing 1 11-08-2007 12:29 AM

Top of Page | View New Posts