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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1answer
138 views

Is a conventional interior drain tile system likely to silt up over time?

Three companies have proposed the same solution, more or less, to address pretty bad flooding in our crawlspace: Dig a trench around the interior perimeter and install a perforated pipe that leads to ...
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1answer
584 views

Sealing what appears to be a non standard overflow drain

I have an overflow drain, as seen in the picture provided, that isn't sealed. The common wisdom I've read online has been to seal with a gasket, but my drain doesn't seem to be anything like the ones ...
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1answer
384 views

Does my vanity's sink need to be offset from the bottom-exit drain pipe?

I am installing a new sink/vanity in a older house. The drain pipe for the sink is down through the floor (as is the water supply lines) and not in the wall. When I position the new vanity, do I need ...
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2answers
338 views

Best way to drain water away from house?

When we get rain the water flows off the cement slabs and drains into the space between the pavers. This is a small amount of water, but enough that a leak has formed in the basement. We are taking ...
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1answer
42 views

How do I seal this grating when it rains?

I use this 6x10' grating for sunlight and aeration but its a menace when it rains. I have used multiple plastic sheets and tarpaulins. They do block the rainwater but start leaking or tearing apart ...
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2answers
70 views

identifying drainage problems without pulling up the floor

Help. We bought a house 2 yrs ago and remodeled it to within an inch of its life. Both my husband and I have mold allergies. The house is on a slab so we pulled all carpet and put in moisture barrier ...
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1answer
233 views

Shoring up drainage culvert slope

I just bought a new house, and the drainage culvert out front along the road has several areas where the slope has collapsed, resulting in what looks like a miniature landslide landscape. What is the ...
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1answer
5k views

basement sump pump water level above drain tile

We bought our house in December of 2015. House is situated at bottom of the slope (backyard is slopping towards the back of the house not very steep - but still negative slope). House has sump pump ...
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1answer
150 views

Drain Help - Cannot Divert to Street

I have a drainage issue in my back yard that we've dealt with for years. I have a few ideas, yet I thought I'd post one to see if it will work first. We live in a typical SoCal track home surrounded ...
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1answer
97 views

Dishwasher Drain Into Sink instead of Under?

Is it ok to have the drain hose of the dishwasher just set into the kitchen sink and set in place, or do I have to merge it with the drain under the sink? I am leaving this apartment soon (with my ...
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3answers
185 views

Solving active sump issues

We bought our 20 year old house in Fishers, IN (northeast Indy suburb) this past summer. Three days after moving in, we had the last of the bad summer storms. One of the pumps in our Triple Safe sump ...
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2answers
646 views

Installing washer/dryer combo in kitchen

Due to space constraints, I am planning to install 1 1/2 inch pvc piping through cabinetry to the sink tailpiece (with some type of tee) which will go straight down to the p-trap to the main kitchen ...
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1answer
62 views

what connection to use for drain

I have a 3" drain running horizontal. I will have a new 2" drain running horizontal to just above the 3" drain at an angle and need to connect them together. I assume I shouldn't use a regular T here,...
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1answer
7k views

How deep should drain pipe be buried under an asphalt driveway?

I have a 4" PVC drain from a downspout that runs parallel to the garage for about 25' before joining another drain. This run is about 12" deep and with a very slight grade. While the driveway is ...
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3answers
2k views

What kind of drain rod do I need to get around this bend?

Had to have this drain unblocked professionally the other day, because I don't have the right kit. It blocks yearly, and so I'd like to be able to sort this myself. The problem is, that the drain ...
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1answer
830 views

Sump Pump runs several times a day every day rain or shine

I am looking to buy a house that has a French Drain and a sump pump installed. The basement is dry but the sump pump is constantly pushing what I assume is ground water out. This occurs several ...
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1answer
338 views

Will my french drain clog/erode my soil if the pipe has holes on top?

Yesterday, I bought some piping at Home Depot for my french drain project. The solid pipe looked good with the proper alignment of holes. However, I needed flexible piping due to the nature of my ...
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1answer
753 views

Water is leaking from basement toilet. help

I bought this house that was without electricity for 8 months (water pipes froze too). I have a septic system. I've removed toilet in the basement and plugged septic pipe (it was filled with water)... ...
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1answer
1k views

Flow rate of water in a gutter system

I am attempting to build a waterfall out of a gutter system. I currently have an awning that is 72" by 48" with 3" high (tentatively) buffers on each side to keep the water from flowing off. The ...
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3answers
454 views

What is the name of extremely porous concrete for water runoff solutions?

I have seen extremely porous concrete that water drains through very well. Narrow strips of this may be put across a driveway to limit excess water runoff. What is the name of extremely porous ...
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1answer
2k views

How close is too close, when digging below foundation level?

I'm digging a drainage trench near my foundation, and have hit the bottom edge of that foundation. In this case it's a T style foundation at the edge of a slab, but elsewhere there's no slab. From ...
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2answers
2k views

Should I be concerned about foundation seepage and what to do about it?

We recently bought a 20 yr old home next to a lake in NC.. within a couple thousand feet. It doesn't rain incredibly often here but we've noticed when it does rain it pours 2-3 times the amount we ...
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2answers
333 views

How can I determine the precise location of a clog in a drain pipe under ground?

I have a drain pipe that goes through my garden, and it's clogged. I've cleared the pipe from a manhole cover, but not 100 %. I also have a special type of water cable that is designed to clear ...
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1answer
3k views

How can I drill through concrete blocks to allow drainage from my backyard?

My back yard has a brick floor and is surrounded by a concrete block wall. In heavy rains, the yard pools with rain water. How do I go about cutting drain holes in the wall or floor?
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1answer
46 views

Proper Procedures for Regrading Under a Deck?

We have been getting tons of water in our basement during downpours (not regular rainfalls). The water comes in where the deck is located. I ripped up some deck boards and found the soil underneath ...
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0answers
92 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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0answers
37 views

No Drainage Around Concrete Basement Floor

This question/comment is in regards to the sump pump question I had yesterday. While digging the hole to set my new sump pump basin I realized that there was very little if any gravel under the actual ...
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140 views

How to redirect water pooling behind skylights

I have a pair of skylights in my roof that leak every time it rains. I've tried silicone and a roofing sealant along the edges.. still leaks. During the last storm heavy rain I went up to check it out ...
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0answers
104 views

Sealing Off Gravity Pipe from Crawl Space

I currently have a 6" clay pipe for eliminating water from my crawlspace. The pipe exits my crawlspace about a foot from a corner wall, travels 15', and opens to air in a ditch (for now). It is ...
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812 views

extra pit next to sump pump

I have a basement with a properly installed sump pump. I have another hole approximately 1 foot away from the sump hole cut to the same dimensions. There are at least 2 pipes that run into the unused ...
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0answers
100 views

Mystery: Water vanished from flooded basement with no floor drain

I live on a century old home whose unfinished basement got flooded this week. We had heavy rainfall which overwhelmed the city's storm sewer. At a certain point there were about two inches of water ...
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0answers
397 views

Pouring drainage channel right next to foundation, how to protect the foundation?

Ugh. How can I arrange details on this concrete pour, to not damage the foundation later? This is San Francisco Bay area (no freezing). The visible clay pipe is a high volume gravity drain from the ...
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115 views

Can I build a concave mortared-stone sidewalk that will also act as a drainage flume?

I recently had a landscaping company install a mortared-stone drainage flume on the interior of a retaining wall at my house: It looks great and works just as well. It naturally has me wondering ... ...
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2answers
78 views

Drainage fix: Flat concrete slab up over my vinyl siding by 2 inches. Is this acceptable?

I am a new home owner. The concrete on my front porch sloped towards the house so every time it rained water drained between the porch and the house. Last week after 8 months the builder took out ...
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34 views

outbuilding drain into dry well

Aside from code differences between jurisdictions, is it acceptable to tie an outbuilding floor drain into a dry well drainage system? The outbuilding does not have a water supply, the slope of the ...
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0answers
86 views

Is soil in an open rock spoon drain a blocker? Think we've got a cowboy job done

Being on a slope, our place has a lot of problems with surface water flooding. We've had a spoon drain installed along our upper boundary to redirect surface water away from the house. Here's a pic ...
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1answer
2k views

Water Drainage Towards Neighbor's House

We are in the process of purchasing a home in Washington State. We receive a lot of rain and the backyard lawn always seems kind of soggy/standing water. I've looked into a french drain and it seems ...
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0answers
42 views

Changing drainage from washing machine

I have a new build house that has a drainage on the side of the house as shown in this video: https://www.youtube.com/watch?v=BU_-fnvqCOI I want to change this so that it does not drain on the side ...
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0answers
68 views

Drainage problem

I built a room to my existing house which created a pitch on the roofline. When it pours rain, the water pools under my window and seeps into my house. I have put up gutters and also a rain ...
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0answers
104 views

Hooking up drain in dishwasher

I have a 2 yr old Bosch dishwasher that does not drain into the sink drain but straight down into a pipe in the ceiling below. That pipe has the proper P trap etc and worked well for my previous ...
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0answers
81 views

Lowering the basement, water table 2 metre deep

My house is constructed on the side of a slope where the top of the slope is built the road. I'd like to dig out the basement which is not high enough to stand in mostly, and is just clay. As part ...
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0answers
1k views

What is a 'normal' time for water to completely drain out of a shower pan?

I installed a new shower with slimline tray. Now when I am showering there is a fair build up of water in the tray. Nothing major or overflowing, but not quite perfect. As a gauge, when I stop the ...
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2answers
1k views

Blockage in bendy pipe

I have a problematic pipe that has a blockage. Problematic for three reasons: I could not snake through it (I have a 25 feet snake with a manual spin, spent a good while spinning trying to snake ...
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4answers
380 views

why river stones needed close to foundation

I often observe that some houses have a strip of lawn adjacent to the foundation removed, and replaced with pebbles, river stone or alike. I understand this does not serve only decorative purpose. ...
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2answers
161 views

What is this, and I can pump my dehumidifier water into it?

We got a dehumidifier with a water pump recently and I'm just now looking for a place to drain the water. What about using this p trap in the middle of this pic: I believe that brown rubber hose is ...
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3answers
80 views

How to manage water pooling at a particular spot in my lawn?

Per the picture, I have an interesting draining issue where some rain water will drain along my roof's edge to a spot on my lawn. Problem is that the water is pooling in heavier rains (see picture ...
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1answer
47 views

Keeping Large Channel Trench Drain Clear

My new garage has a large Channel trench drain in front of it. The architect oversized the trench drain and used a non-typical 12-inch drain. I'm confident that I won't get water in my garage. But on ...
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1answer
42 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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3answers
115 views

Sump pump size and reliabilty for crawlspace

Still trying to sort out the different advice from crawlspace drainage vendors. The least expensive fellow insists a single 1/3 HP pump pumps out plenty of volume, and that only a single pump is ...
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1answer
36 views

Drain to a reservior when water height is higher then the drainage

I have a reservior made from a 220litre plastic drum which is about 1.2 meters tall. i have a sump to irrigate my garden in the drum and it pumps out the top through a pipe to my garden tray which ...