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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2answers
17k views

How to stop concrete slab floor from absorbing water

This weekend my wife decided to clean up my office. When she pulled the old filing cabinet away from the way, she noticed the baseboards and carpet carpet were showing signs of water damage. It's a ...
4
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1answer
2k views

How to fix drainage from gutters?

I have two drains on the side of my house that have been filled in and no longer properly drain. I know they dont go anywhere because I just finished trying to unclog them with a rented drainage snake ...
4
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1answer
9k views

Do waste water pipes for kitchens and bathrooms require a minimum slope to avoid clogging?

When I had a dishwasher installed, the plumber refused to install the waste water pipe horizontally, saying that this would get it to clog all the time. He left a roughly 1:10 slope on it. I thought ...
4
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1answer
1k views

How do I cut grooves in self-leveling concrete to incorporate an existing drain?

This is a follow up question to my previous question about leveling a basement floor without losing the drainage. After the feedback I decided to use self-leveling concrete and cut (or form it in ...
4
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1answer
4k views

methods of detecting a copper pipe in concrete floor

We believe that our copper water line is embedded in the concrete (and rebar) basement floor. We would like to excavate a hole to install a sump pump. We don't want to hit the copper line which we ...
4
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2answers
1k views

What does airflow in the sump pit mean?

I have a sump pit in my basement with a pipe that comes from the drain tile. The drain tile does not see day light anywhere, it's all near the footings of the foundation. I can feel a strong flow of ...
4
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2answers
6k views

In CLAY soil, looking for best method to set wood fence posts?

I am getting ready to install a wood fence. My problem is I have soil that is mostly clay. What is the best method to install posts in poor draining clay, giving me the best longevity?
4
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1answer
1k views

What should I do about a high spot in my new driveway that is causing rain water to backup?

I recently had a new asphalt driveway installed and after a tremendous downpour, I found there is a high spot in the driveway that caused the rain to pool and back up towards my garage within a foot ...
4
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1answer
592 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 ...
4
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1answer
381 views

French Drain placement question

I am installing a French drain around the back side of my house to help protect the perimeter foundation. I have a 31'X 36' patio butted up against part of the foundation. Should I also install the ...
3
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3answers
2k views

What are the pros and cons of vinyl gutters?

I need to add some gutters to part of our house and I'm seriously considering vinyl gutters because they seem REALLY easy to setup (with minimal tools required too). That being said, I've heard some ...
3
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4answers
892 views

How to get water to hop from patio over brick wall?

I have a concrete patio elevated a few feet above the lawn. The patio is bordered by a brick wall (on 3 sides, with the house on the 4th) that extends higher than the top of the concrete of the patio ...
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6answers
4k views

Why do bathroom sinks have overflow holes whereas kitchen sinks and tubs do not?

My understanding is that the purpose of the overflow holes is twofold-- To allow water to flow down you drain faster. To prevent overflow if the sink is filling faster than it's draining. If #1 was ...
3
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3answers
15k views

Drain hose of washing machine too low?

I just bought a front load washing machine and installed it. The plumbers in our bldg. installed the incoming water hose and the drain hose to the wall. Problem is that when the washing machine drains,...
3
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1answer
39k views

Why am I seeing stagnant water inside the shower drainage pipe hole?

I was cleaning the shower drainage pipe (removing hair etc) in the upstairs bathroom and I can see water around 1 foot deep. See the pic. Is that normal? Shouldn't the pipe be empty? If water stays ...
3
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1answer
2k views

Plastic bucket under gutter downspout

I am doing some work around my gutter downspouts and found that underneath the ones at the front of my house, someone had buried 2-gallon plastic potting containers (upside down). There was a piece ...
3
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3answers
4k views

Are there benefits to having the dishwasher drain into the garbage disposal?

My dishwasher is not draining properly and while taking a look at things I realized that the drain hose is not tied into the garbage disposal. Is this incorrect? Are there certain benefits for having ...
3
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1answer
4k views

Under bathroom sink piping (exposed)

We are looking at setting up the piping for under our wall mounted sink (no vanity, ie, piping will be exposed). And after our contractor finished putting the wall we noticed that the hole from the ...
3
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2answers
156 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 ...
3
votes
1answer
282 views

Rotten Rain drain grate

The steel grate on my garden rain drain is rotten. Can I just replace the grate or do I have to replace the channel as well. The grates and channels seem to be complete when bought. I would prefer to ...
3
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1answer
5k views

How can I tell if slow drainage is caused by a problem in the main sewer line or the venting system?

I recently had the plumbing get backed up and snaked out. Things are working much better now, however, there are certain conditions (notably the use of toilet paper in conjunction with a shower or the ...
3
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3answers
3k views

Crawlspace Drainage

I am beginning the installation of a Crawlspace Perimeter drain. I discovered that the concrete footing extends about 12" into the crawlspace. As I was going to place the NDS EZ drain pipe down ...
3
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3answers
117 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 ...
3
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1answer
269 views

Should the covers on sewage drainage pipes be airtight?

Should the caps on the sewage drainage pipes outside be airtight? We've had a little back-up (vent related, it looks like) and I loosened the caps in case water couldn't drain fast enough, so overflow ...
3
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2answers
2k views

What can I fill a trench around my house with to avoid creating a drainage issue?

I am planning out my footing insulation job. Right now it's a pretty standard floating slab-on-grade with footings extending down a few feet, and the footings are uninsulated. A ring of concrete was, ...
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5answers
3k views

How risky is it to drain window wells into an interior drain tile system?

During some recent heavy rains one of my window wells filled with water, which started coming into the basement through the deteriorating window. I have a drain tile system around the interior of the ...
3
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3answers
569 views

Should I be worried about tears in my foundation wrap?

I recently moved into a newly built house in an area still in construction. My house was completed before my immediate neighbours. While they were excavating, they took large chunks of our foundation ...
3
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1answer
2k views

How do I improve the drainage of this grass driveway?

I've got a long grass side-yard which doubles as a driveway for both my residence and the ally behind my house. After a few heavy rainstorms here in Southeastern North Carolina (read: business as ...
3
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2answers
3k views

Is it possible to install a pump to fix a slow drain?

We have a combination shower/tub enclosure in our bathroom here in Norway. The floor drain in our bathroom was placed in a very unfortunate location, such that the water draining from the tub/shower ...
3
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1answer
1k views

How to remove hydrostatic pressure from basement floor so we can finish part of the basement?

We purchased a 3000 square foot ranch that was built in 1977. We would like to finish about 1000 sf of the basement. It has poured concrete walls and a concrete floor. Currently, we have two sump ...
3
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2answers
1k views

Outside drain - how to replace this grate?

I'm planning to redo a back entrance into the REO house I bought. There is this drain: see images which seems like it had a grate on it initially but was broken out? It's hard to read - but it ...
3
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2answers
6k views

Garage Floor Drain Alternatives

A couple of years ago I bought a house that was built around 1960. It is a brick ranch house with a 1 car garage built in to the house. The problem is that the garage floor does not have a drain. ...
3
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3answers
40k views

What is the correct way to install a washing machine drain pan?

I've got a laundry room on the second floor, and when it was remodeled the contractor put in a drain pipe, but no drain pan. At the moment, I have the washing machine hooked up, but it's away from ...
3
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1answer
611 views

What should I keep in mind when extending downspouts?

I am considering extending/connecting the downspouts of my house to some pvc piping which I will run underground. What are things that I need to keep in mind? Specifically, I have the pvc piping but ...
3
votes
1answer
5k views

How close should a french drain be to a foundation?

I am preparing to install a perimeter drain in my crawlspace. I will be using NDS-EZ drain pipe. My question is Where is the proper place to dig the trench? Next to the foundation or 1 foot away ...
3
votes
2answers
8k views

How do I fit a drain gully when the drain pipe is very close to the surface?

I wish to lower some paving round my house, as it is too close to the DPC (damp-proof course). However the drain pipe will not be very far under the new level of the new paving. Therefore how can ...
3
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2answers
16k views

Prevent water from overshooting gutter at corner roof valley?

I have a large, steep roof section (~400sqft) connected by a long ~20' valley. During heavy rainstorms, the majority of the draining water completely overshoots the gutter, landing near the ...
3
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1answer
2k views

Can I build a French drain with old concrete and brick instead of rock?

Can I use old pieces of concrete (broken up cinder block) and old brick instead of rocks in the construction of a French drain? I'm thinking of building a French drain that leads to a dry well to ...
3
votes
1answer
931 views

How to add a drain pipe to a concrete block wall covered in insulation?

I want to run a 1.5" drain pipe along the wall about 2 feet from the floor to a microbrewery setup in the corner of my basement. I have sheets of fiberglass insulation against the walls though, and I ...
2
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4answers
2k views

Should a concrete slab slope toward my house?

I am adding a room to my home, the contractor poured a concrete slab for the addition and it slopes toward the existing house and it is now raining and water is coming under my floors. Is the slope of ...
2
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1answer
246 views

Should snakes be used on toilets?

An answerer on this question stated "remember to never use snakes on toilets." The internet, however, contains numerous tutorials on how to snake a toilet. Can and should toilets be snaked?
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2answers
310 views

Garbage disposal not turning on with on/off switch. Water in sink draining in dishwasher. [closed]

My garbage disposal is not coming on and water from the sink is draining in the dishwasher. Do I need an electrician?
2
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5answers
685 views

How should I cover this drainage garden pit in my front yard?

We just bought a newly constructed house. In front of it is a rectangular concrete pit, maybe 2–3 feet deep and roughly 8 feet long by 5 feet wide, with dirt at the bottom and several shrubs planted ...
2
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3answers
267 views

Can I let rainwater run along the wall?

I have 2 concrete small slabs (2m x 5m) that are sloped with 1.5% ending in the wall of the lower floor, 3 sides of the slabs have walls (just the low level doesn't). What is the best course of action ...
2
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2answers
277 views

Will the water be able to drain out of a blocked toilet?

Our toilet is backed up and water is filled to the brim but there is nothing else in the bowl. I turned off the water supply for the toilet with the little knob connected to the wall, but will the ...
2
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3answers
4k views

How do I set up drains for a flat roof?

In the house I'm building, I will be using a flat roof with a parapet around it. The total area will be around 120 sq meter and the roof will be a concrete slab (at least 8 cm). What is the best way ...
2
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4answers
26k views

How can I temporarily seal a gap underneath my door to stop water getting in while it's raining?

During heavy rain the water from the drains outside my apartment overflow. The doors have an almost 1 inch gap at the bottom, and the water floods the apartment. How can I seal that door gap ...
2
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2answers
77 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 ...
2
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1answer
176 views

Dealing with water on a bad garage slope

The slab in our garage has settled toward the house, so whenever our cars are slushy the snow drains into the garage, where we walk and have things stored. We've been quoted about $4,000 to replace ...
2
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2answers
113 views

How can I get my sink's trap to fit around the rest of the drain assembly?

I'm in the process of adding a new bathroom to my house. I had a plumber rough in some connections for us, and then we are in the process of finishing it off. We used plastic accordion pipe to ...