On Wednesday, May 23, 2018 at 2:44:06 PM UTC-4, Robert Dickens wrote:
Hello all,
I am buying a house with 3 inches of water in the crawl space. No foundation
issues but need a permanant fix. I am looking to install a sump because
groundwater is the source of my mess.
My question is, being that I have stem walls in several places in the crawl
space, I have 4 sections that hold water. Is it ok to drill holes in the
interior stem walls to allow water to move to 1 central sump, or do i need 4
pumps? 1 for each section?
Any input would be appreciated. Thanks,
Robert

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Aren't there homes for sale that don't have 4" of water? Or are you
getting a huge discount? The solution would be to install tile drains
around the perimeter of the crawl space that lead to one (usually) sump pump.
This is normally done during new construction when they do the foundation,
so somebody screwed up big time. And if they screwed that up, God knows
what all else they screwed up too.