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Old 01-11-2014, 09:12 PM
 
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We have an existing perimeter system but were going to upgrade. A structural engineer will charge $400 for a plan to put in a french drain. Is this a waste of money? I would like to understand why we should hire when the work seems straightforward.
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Old 01-12-2014, 10:13 AM
 
Location: Berkeley Neighborhood, Denver, CO USA
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Default Spend the money

$400 is a good price
Easier to deal with the city (permits, inspection)
Easier when you sell the house.
Hire the engineer.
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Old 01-13-2014, 08:07 AM
 
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Um....We already have an existing perimeter system, so are you saying that it would be considered better when selling to say that we have an upgraded system.
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Old 01-13-2014, 09:01 AM
 
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Quote:
Originally Posted by Species 8472 View Post
Um....We already have an existing perimeter system...
Just to be clear, I assume you mean perimeter drain system?

Anyway what is wrong with the existing system that you need to upgrade it?

If there are problems with the existing system, I should think consultation with an expert might be a good idea.

However if the existing system is working fine and you are just repairing it so it can work as originally designed - replacing worn parts or whatever, then no need to consult anyone.
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Old 01-13-2014, 10:28 AM
 
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It is not a true French Drain. Just a moat, so to speak, with a sump pump. The water just sits in the moat.

Definitely need an upgrade and have consulted experts.
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Old 01-13-2014, 10:54 AM
 
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Quote:
Originally Posted by Species 8472 View Post
It is not a true French Drain. Just a moat, so to speak, with a sump pump. The water just sits in the moat.
That sounds like my folks' old house (circa 1928); a poured concrete basement but NOT a "floating slab" with a perimeter trough and another trough going from one corner to a lower spot about 4 feet from either wall.

It didn't work very well...but, then again, that basement had never really meant to be much more than storage and "wash basin".
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Old 01-13-2014, 11:05 AM
 
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What is wrong with the existing system that you need to upgrade it?
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Old 01-14-2014, 08:14 PM
 
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The existing system has 3 to 4 inches of standing water around the trench. We plan on finishing the basement and this would create problems.

It is no wonder our home has always felt comfortable in the winter--indoor humidity.

However, I wonder whether this has caused mold to grow on the concrete block?
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Old 01-15-2014, 10:21 AM
 
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I'd spend the money to get the proper design system (hire the engineer).

The alternative is to not do that, install a drain system, then find out it does not work! That could cost a whole lot more than $400 to fix.
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