DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Bricks, Masonry and Concrete > drainage for concrete blocks




Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old 06-15-2014, 09:55 AM  
martyb11
Junior Member
 
Join Date: Jun 2014
Posts: 1
Default drainage for concrete blocks

Need to provide excellent drainage for a small area where I'd like to lay 8 concrete blocks but normally fills with water. Is a bed of gravel and sand sufficient or can I put in some form of weeping tile below? How?

Thanks,
Marty



__________________
martyb11 is offline  
 
Reply With Quote Quick reply to this message
Old 06-15-2014, 11:01 AM  
Wuzzat?
Banned
 
Join Date: Jan 2010
Posts: 2,328
Liked 167 Times on 154 Posts
Likes Given: 94

Default

Quote:
Originally Posted by martyb11 View Post
normally fills with water.
Pour a known quantity of water into the area, say a few gallons, and time how long it takes to drain 'low enough'. The first gallon may move faster than the last gallon.

For worst case pick a time when the soil is already saturated from previous rainfalls. If the groundwater level is high in your area you may need to pump or pipe this water elsewhere.

Compare this drain rate with the expected rainfall and rainfall rates in your area. The best rain gauge I ever had is a 5 gal. bucket set upright in my truck bed but a coffee can will also work.

You have silt, sand or clay in your yard?
http://www.google.com/search?client=safari&rls=en&q=silt+sand+clay+perme ability&ie=UTF-8&oe=UTF-8

Clay to sand gives a 1:100 permeability ratio so proper construction is very important.
__________________

Last edited by Wuzzat?; 06-15-2014 at 11:23 AM.
Wuzzat? is offline  
 
Reply With Quote Quick reply to this message
Reply


Quick Reply
Message:
Options

Thread Tools Search this Thread
Search this Thread:

Advanced Search
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 On
Refbacks are On


Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
laying concrete blocks sisyphus Bricks, Masonry and Concrete 14 07-25-2012 10:41 AM
Concrete slab patio - drainage rustyfisher Bricks, Masonry and Concrete 4 04-25-2011 05:15 AM
Using deck concrete blocks instead of footing foundations lorne17 Decks & Patios 0 02-10-2011 07:25 AM
Drainage concern for area between concrete patio & driveway. DebbieG Framing and Foundation 1 08-10-2010 07:38 PM
crawl space using concrete blocks sankar Framing and Foundation 1 08-24-2009 09:44 PM