Questions tagged [drainage]

Use this tag when the topic is about controlling water runoff, particularly near structures but also in yards or elsewhere.

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Blocked sink, waste forced back when rodded

I drew a quick diagram here (you will have to forgive the crudeness): What started as a small blockage with slow draining has grown to be a near complete blockage. We put some water down and over ...
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1answer
35 views

Effective ways to get rid of smell in basement from drain?

Background So this weekend I got to have all the fun of unclogging a clogged drain. The drain was from a kitchen sink but I was able to go through a lower access point and run a motorized snake ...
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24 views

what to fill surface water drainage trench with

Cabin is at bottom of steep driveway. Water runs down and into crawl space. One very large ditch about 15 feet up gets most of it. This ditch gets remainder. On hand - 1 inch round stone, tyvek, ...
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56 views

Are there outward signs of a French drain?

I'm wondering whether my house has a French drain to keep water away from the foundation. Is there a way to find out that doesn't involve digging up the yard? (I.e., would there be any above-ground ...
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112 views

How should I put a gutter downspout on a corner of my house surrounded by pavement?

I'd like to install gutters on my house to direct water away from the foundation, but one front corner is surrounded by driveway on one side and a paved walkway on the other curving back to the front ...
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30 views

Proper Trap Diameter

My kitchen sink drains slowly even after I snaked it 20ft without hitting any consequential clogs. I'm thinking there could be a couple of issues: The trap diameter (2.5") is too wide for the inlet ...
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1answer
69 views

My mini fridge had a frosty back wall, so I turned it off for 24 hours. There was water on the floor through the back of the fridge, why it happened?

I know that there is a drain hole, and then that water is drained through it and then evaporated by the evaporator, and when the fridge does not work - nothing will evaporate the water. So does the ...
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1answer
29 views

Drainage area for a French drain

I have a muddy backyard that has minimal slope toward the back property line, and I'm considering installing a French drain to improve the situation. Is there a general rule as to how much area a ...
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4answers
88 views

How to fix drainage clog in the shower?

Drainage in my bathroom is keep getting clogged. I tried using a snake by drilling manually ... poured at least 4 cans of Drain clog remover on different time period... in the last 3 days.. however, ...
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1answer
35 views

How to pave a small area but get maximum drainage / permeability

TL;DR: How should one going about creating a hard, smooth surface that drains well, where slope can't be used to achieve the drainage. We have a small 1/10th acre city lot, and two large dogs. Their ...
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24 views

Fence post behind retaining wall, drainage concern

I need to replace an old 2ft retaining wall(railroad ties) along my property line. There is not currently a fence there so I was going to take this project to add one. I am located in the PNW so there ...
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34 views

Proper grading around the foundation

I know that the moisture problem we have is being caused by positive drainage towards the house. I've seen recommendations for simply properly grading the soil (6 inch drop for every 10 feet) and ...
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3answers
56 views

How damaging can a 3 meter (10 feet) long drain hose be for the washing machine pump and microorganism growth?

I have two washing machines and they are placed one next to each other (this is the only way I can position them due to the space). The first one is connected to the drain pipe under the sink ...
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37 views

Drainage issue, water causing foul odor in home

I live in an apartment building where the building is built on a concrete slab. There is NO overhead drain pipes or gutters and the water pools up along the side of the building next to my living room ...
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Is there any reference (or probably web/online calculator) to figure the size for downspout pipe for a known flow rate

The total flow rate of water collected by the gutter of my roof is known (50 L/minute). I need to figure the safe size for my downspout pipe for this roof. What's the minimum diameter for the ...
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30 views

Use cement blocks for egress window well surrounding [duplicate]

I need to make an egress window and the depth below grade is 24". However, most egress window wells at home improvement stores are 20" in height and I need to buy 2 of them which made the cost double....
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54 views

Can I approximate flow rate of a roof with known flow rate of another roof?

My main building roof I need to know the flow rate (FR, for example Litre per minute) of water coming out from the gutter of this roof. The easiest way would be catching the flowing water coming out ...
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1answer
40 views

Should I fill my crawlspace drainage trenches before putting down a moisture barrier?

I recently purchased a house by Lake Erie which has a crawlspace foundation. There are existing drainage trenches throughout it dug into the hard clay, which all drains to a sump pump. These trenches ...
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1k views

Can this water damage be explained by lack of gutters and grading issues?

We are currently midway through a major renovation to an old house. Part of the renovation was digging out a new basement and adding a new foundation around it. The basement has a ceiling height of ...
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1answer
107 views

Is channel in basement standard design?

Determined this is a 4 inch slab on top of original slab. Possibly with internal drainage channels from center of basement to edge, where it runs to pictured channel and sump pump. House has channel ...
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1answer
46 views

Will a french drain help the runoff ditch in front of my house?

Like most rural yards I have a shallow runoff ditch between the road and my main yard. Over the whole 40 ft span the ground seems to slope in a consistent direction towards a larger common ditch/creek....
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1answer
41 views

Moving wet appliances away from sink around kitchen L bend and past oven

I am renovating my kitchen so that I can introduce a dishwasher and extend my counter top. My kitchen is a small L shaped one, and in order to get everything I want in the design I need to move my wet ...
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1answer
76 views

Are gutters the only way to fix this ice accumulation issue?

Whenever it rains or snow melts in the winter these rain guards drop water right in front of the walkway which freezes and causes an ice mess. I am reluctant to add a gutter section because no other ...
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111 views

What kind of stone makes the most porous fill? (french drain)

I need to create some drainage in the form of some dry wells and french drains. What kind of stone will maximize the porosity to get good water flow? I originally thought just ordinary gravel, but a ...
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1answer
121 views

Underground downspout extensions - Are pop up emitters needed?

To move rainwater further away from a foundation than the standard 2~3 foot above-ground downspout extensions, what are the underground options? Example of standard downspout extension: (Photo from ...
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4answers
122 views

Who should I call for a roof drain leak?

We have a balcony above our garage attached to the house, that is surrounded by 3 stucco walls and has a drain in the middle that leads into our garage. Example of random balcony with drain similar ...
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1answer
124 views

Drainage on Pier and Beam House

We live in Argyle TX and have a 42 yr old pier and beam house sitting at the bottom of a hill. I have called several people out for professional help and they want $5000 to $7000 to regrade put in ...
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1answer
103 views

How prevent water drainage from neighbor's yard?

Most of our back/side yard is 3'-5' lower than our neighbors'.During winter rainstorms water drains under the fence from their barely landscaped yard and stands in low spots AND at our house slab. A ...
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2answers
379 views

How can I increase deck board gap without removing the boards?

My friends just bought a new house that has a deck that has gone mossy/moldy. The sellers pressure washed the deck and replaced a few soft boards, but the real problem is that there isn’t enough gap ...
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3answers
591 views

Should my sump pail be perforated?

I'm replacing the sump basin/liner in my home which is currently a perforated 5 gallon bucket surrounded by gravel. I have an interior drain system that has two pipes terminating into the gravel pit ...
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1answer
38 views

Nomenclature for water management objects

Building roofs and parking lots cause prevent rain from naturally entering the ground. A bird's eye view of a building shows a footprint where water can not drain into the ground and must drain into ...
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1answer
242 views

How can water be diverted away from the street curb in front of my house?

How can water be diverted away from the street curb in front of my house? Several of my neighbors are draining water from their sump pumps onto the road and it runs down the curb and collects in ...
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22 views

Calculate rainfall intensity

To help size drainage, I'd like to calculate the maximum rainfall intensity for my particular location. How do I do that? I've found data sources that will give me the average number of inches of ...
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2answers
355 views

Rain chains at an angle from the vertical

I'd like to hang a rain chain, but not quite vertical straight down -- at a slight angle from vertical. What angle from vertical can I hang the rain chains, and still have them work? Are there any ...
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2answers
75 views

Is it reasonable to convert a general purpose motor and pump for a sump pump?

TLDR: I have a 120V 1/4 HP general purpose motor with pump head attached (with female threaded connections for input and output). Could I keep this pump/motor above ground and run PVC from the pump ...
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22 views

Tree vs drainage foundation issue

I have been seeing expanding cracks around my home and slowly widening cracks in my foundation. I had three foundation companies look at it and all three said different things. Excavate front of house,...
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2answers
185 views

Possible downsides of plugging up small hole in foundation?

I have found two small holes in the foundation, near the floor, in the cellar. Water trickles in through these two holes. I am thinking of plugging them up with spray foam. Are there any possible ...
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1answer
101 views

What purpose does this PVC pipe in my crawlspace serve?

I was cleaning the crawlspace under the house and discovered two 3/4 inch white PVC pipes that run across the crawlspace buried under ground (4-8 inch deep) and terminate at the perimeter foundation ...
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1answer
166 views

How can I prevent silt from clogging my yard drain?

In my concrete back patio, I have a standard 4" square drain cover which allows water to enter a sewer pipe about 6" below. The issue I have is that the sides of this hole are not covered in cement ...
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1answer
85 views

Does this basement pit drain into the soil or the sewer?

My house was built in 1940. I recently pulled up the floor and subfloor in the basement and noticed this basement pit. There was about 6 inches of water in the bottom which I drained. Below that is ...
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1answer
98 views

Back Yard Hill Drainage Issues

My back yard slopes toward my house. Below is a picture taken from my dining room to help explain things. Previous owner had a french drain installed marked by the red lines. We've had a week or so ...
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1answer
354 views

Does landscape fabric (filter fabric) get clogged? If not, why not?

I have a drainage problem to solve and I'm considering a French drain. I have read in dozens of places that various drainage systems (including French drains) are usually lined or wrapped in a ...
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1answer
48 views

Can I change the gradient/slope of asphalt walkway with cold patch?

I have a asphalt walk way that runs right next to my house and collects water. I have a outside sump pump near by, but there is a low spot on the asphalt next to the house that will always take water ...
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75 views

I live in NJ. Do I need a p-trap and vent on a washer drain line not going directly to the stack?

Here is my situation. As it sits now, my washer drains directly into the slop sink right next to it. I live in a split level and I am moving the washer & Dryer up one half level about 6 feet in ...
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1answer
35 views

Is my soil adequate for a dry well installation to collect roof runoff?

I did a soil percolation/infiltration test to determine how quickly water drains through the soil: Dug a hole approximately 12" in diameter to the planned depth of the dry well. Filled with about 2 ...
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33 views

Montgomery Ward window a/c drain clogged

I've got a really old Montgomery Ward A/C unit, model: VWE-5156A that seems to have it's internal drain clogged up. It works really well, (we were all shocked when it kicked on and worked like a ...
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263 views

Drainage for stairs to garden-level basement entrance

I have some concrete stairs that go down a few feet from the back yard into a basement door. During a heavy rain, water pools on the bottom stair, eventually coming in under the bottom of the door ...
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246 views

Properly fill small sinkhole near meter vault

I've got a very small sinkhole that has developed between my driveway and my water meter vault/box. The hole is about 20 inches deep and has actually eroded the soil deep enough that it goes ...
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1answer
104 views

Is there a way to fix a small plumbing leak from inside the pipe?

During and after I have a shower I can hear a dripping inside a boxed-in area in an adjoining room where the drainage pipes are fed out of the bathroom and downstairs. I think I am going to have ...
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1answer
554 views

What is the minimum distance from property line water can be drained?

My city (Redmond, WA) enforces the 2015 International Residential Code, but I could not find any requirements around distances of downspout and/or sump pump drainage from property lines. Perhaps I'm ...