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- Path: sparky!uunet!zaphod.mps.ohio-state.edu!uwm.edu!linac!unixhub!fnnews.fnal.gov!FNALF.FNAL.GOV!BEHNKE
- From: behnke@FNALF.FNAL.GOV (M.L. 'Broomen' Behnke)
- Newsgroups: misc.consumers.house
- Subject: Re: The Dutch Challenge
- Date: 21 Jan 1993 19:37:19 GMT
- Organization: Fermi National Accelerator Lab
- Lines: 38
- Message-ID: <1jmu1fINN6m8@fnnews.fnal.gov>
- References: <93021.120317BOYDJ@QUCDN.QueensU.CA>
- Reply-To: behnke@FNALF.FNAL.GOV
- NNTP-Posting-Host: fnalf.fnal.gov
-
- In article <93021.120317BOYDJ@QUCDN.QueensU.CA>, Jeff Boyd <BOYDJ@QUCDN.QueensU.CA> writes:
- >
- >One of my first tasks as flood season drew near was to stuff a heavy rag
- >into the sump feed and brace it in with a strong stick. This would slow
- >the sump inflow rate to the point where a single 1/3hp pump could easily
- >handle the job. However, you need to be confident that the water can't
- >simply find a new route into your basement, or if it can (eg. seepage)
- >that the effective inflow rate is low. Our experience with seepage was
- >that the inflow rate was tiny compared to the sump feed.
- >
-
- But, is the water coming through the walls, or entering the sump via the
- foundation drainage system. If it's coming through the walls, plugging up the
- inflow to the sump won't help much. If the water is coming through the
- foundation drainage system, plugging it up will slow down the inflow, but all
- that water is backing up somewhere (under the floor, outside the basement walls,
- etc.). Once it builds up enough hydralic pressure, the water is going to invade
- the basement again through the weakest point (around the wall/floor joint) with
- a far amount of force(I can just see Jeff going into his basement and finding
- little gysers all around the perimeter of his basement). If the wall/floor
- joint holds (unlikely), the next area of concern would be the pressure against
- the outsides of the basement walls. Once enough pressure builds up, the walls
- will start to crack and bulge, starting at the lowest point on the wall. In no
- time the walls will fail completely and one then has the *FUN* task of jacking
- up the house (if the local building inspector doesn't condemn it and order it
- demolished), putting it on a temporary foundation, digging out your mud filled
- basement, put up new walls and foundation, then dropping the house onto the new
- basement walls. Quite an expense can be caused by a rag.
-
- Just my $.02
-
- Mike Behnke
- Fermi Nat Accel Lab
- Batavia, Il.
- BEHNKE@FNALF.FNAL.GOV
-
- My opinions are my own, and not those of the lab.
-
-