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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70k 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 ...
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1answer
59 views

Sump pump horizontal distance - Why do 90 deg angles put more load on the pump after a vertical drop?

I'm installing a new sump pump basin in a new location in my crawl space. I currently have a Zoeller M53 1/3 HP. The discharge pipe will come out the back of my house, but I want to bring the ...
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3answers
3k 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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0answers
22 views

Concern with whirlpool tub pump drainage

I am having a whirlpool tub installed by a plumber. This is the tub. We purchased it with an upgraded pump, specifically this one. It came from the factory looking like this: The pump is mounted at ...
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0answers
23 views

Small atrium in 3rd floor of building has a storm drain that's leaking down to the crawlspace. How do i fix this?

My building (old 4 unit Victorian) has a small atrium on the 3rd floor with a storm drain that's leaking all the way down to the crawlspace underneath the building. When it rains, i can hear light ...
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1answer
43 views

How low should I drill holes in my sump pump basin? Should I drill them at the bottom?

I'm encapsulating my crawl space and as a part of this I'm installing a sump pump with a perimeter drain around the inside of the crawl space that leads to the sump pump basin. I installed the sump ...
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2answers
233 views

Corrugated vs Solid PVC for sump pump drainage

I am about to do drainage project for my sump pump discharge drain. I am confused about what kind of material to use either solid PVC or corrugated. I live in the Chicago area where winter temp gets ...
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1answer
45 views

Bathroom sink drainage

Yesterday I tried to get my bathroom sink to drain better and I used a plunger. Unfortunately water got into the overflow and now water is coming out through the hole. What can I do? ...
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1answer
124 views

Sandbox with roof, but it floods and sump doesn't do it

Built a roof covered sandbox for my kids, put a tarp at the bottom so groundwater wouldn't raise up, but the opposite problem keeps happening. My kids keep flooding it with water, and the and then ...
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1answer
100 views

My pool drainage seems to break the law of physics

I apologise if this is answered somewhere else, but I can't find the answer. I have an above-ground pool, with an overflow pipe coming out of it about 4" from the top. This overflow pipe then ...
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2answers
214 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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2answers
2k 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
58 views

Can only use small sump pump basin in crawl space, what can I do to prevent short cycling?

My crawl space access is only 19" in height. This severely limits the sump basins I can find. Every basin I see that say that they are 18" diameter are referring to only the inside diameter. ...
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1answer
75 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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2answers
34 views

Washing machine overflow

I live in a home built in the late 60s. The old set up for the washer was draining into a utility sink (1 1/2 trap that connects to a 2in main) I wanted to move the washing machine to the other side ...
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2answers
545 views

Fixing slope on concrete patio - grinding a drainage channel?

My house has a concrete patio (about 16x16 though its 5-sided) which is not sloped properly for drainage. In some sections it seems basically level, in others (near the doorway of course) it actually ...
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1answer
96 views

Insulating basement with interior drainage system

Note that I'ma DIY'er so please go easy on me and please do point on my errors :-) Some time ago I had significant water problems in my basement and had an interior drainage system installed in my ...
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1answer
44 views

Connect a channel drain to existing drainpipe

I want to add a channel drain at the front of my lean-to in order to direct rainwater from the lean-to's drainpipe into the existing house drainpipe. I understand that this is not a typical usage ...
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3answers
47 views

What's the best way to deal with the floor of a shed with water infiltration?

I have an old carriage house on my property, probably over a century old, which sits on what is now the lowest part of my property. As a result, water runs back into it along the driveway (which also ...
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2answers
337 views

How to reattach detached cable onto a drain hand auger?

I have this drain hand auger, But the cable is detached when I extend it out for cleaning, now I don't know how to attach and wind it back onto the device, I also can't find any manual or tutorial ...
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1answer
144 views

Overflow Pipe Popped off Drywell

After a severe rainstorm I noticed the back overflow pipe of our drywell popped out of the ground. I went back and set it back into place but after inspecting the area, I noticed a lot of erosion ...
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2answers
242 views

How to support 20 feet of 4 inch pvc drain pipe horizontally along a concrete wall?

I need to run 20 feet of 4 inch drain pipe horizontally along a concrete wall. Someone suggested saddle clamps and anchors. I am not sure exactly what type to use, especially if the pipe is full of ...
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2answers
409 views

Basement floor drain back up, 1/2" snake failed, what next?

The basement floor drain is having backup after the wash cycle from the washer, it doesn't backup from other water usage. I had a plumber came in to power snake with 1/2" tip (and few other tips) ...
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1answer
70 views

Dishwasher drainage problem

I recently got a "new" (used) dishwasher and have installed it myself. It is a Frigidaire Ultra Quiet iii. There is a problem with it draining water. Here is what the setup looks like: The ...
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2answers
913 views

Non woven geotextile fabric for french drain clogging in heavy clay

I did a lot of research on french drains before I hired a landscaper to put one in a month ago. Followed advice of the French Drain Man and used 4oz non woven geo textile fabric. I also had standing ...
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1answer
44 views

What is the 4" white pvc pipe in Pool patio concrete slab?

Bought his house this summer. Didn't like that pool liner attempted to float in a few areas during a 2 day ice storm back in October with 3+ inches of rain. Back corner around shed became a lake with ...
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1answer
109 views

Ejector pump instead of sump pump in basement

I need both groundwater drainage as well as laundry room sewage pump in basement. Should they be separate pumps (asump pit with pump and 40 liter sewage ejector reservoir with pump) or could ground ...
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3answers
93 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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1answer
394 views

Landscape + drainage along fence line

I am on a corner lot and my backyard receives water runoff from my neighbor behind me and my neighbor beside me. I have a french drain installed where the backyards come together and didn't have much ...
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0answers
27 views

Finishing basement with unusual drainage

I live in a historic home, and the previous owners made some interesting choices, to say the least. As a result, there are lots of things here that I’ve not encountered elsewhere. I’m currently ...
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1answer
51 views

permanently closing off a crawl space under a house

I have a old small house that that was built in the 60s above ground with a dirt  crawl space underneath. There are two  access openings on each side of the house 28 x 18. There is no need to crawl ...
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3answers
62 views

How can I handle expansion drainage from water heater?

I have a couple of 150L electric water heater cylinders in the cellar, fed by mains water pressure. They're designed to bleed a little from the bottom, as water inside heats up. If they were above ...
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3answers
2k views

Rocks in Washing Machine?

We recently purchased a home that had the washer and dryer left behind. The washer is a GE and in good condition. We were told by the previous owners that the washer worked fine, but we tested it with ...
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1answer
82 views

How to open this drainage cap?

Just moved into a new house and had a new washer and dryer delivered today. When they installed them, they said they couldn't complete the washer install due to this cap on the drainage pipe. They ...
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2answers
99 views

Can I run a washer hose up and over a door?

Currently my washer is on one wall next to a standing drainpipe and blocks access to an exterior door. I would like to move the washer to the exterior wall, next to the dryer, but that would require ...
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1answer
58 views

Is gravel necessary for post hole drainage in sandy Florida soil?

I am installing 6’ vinyl privacy fence in FLORIDA. I would like to think the sandy soil would drain well enough. The labor and cost of digging deeper holes and buying and delivering gravel doesn’t ...
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2answers
62 views

How can I effectively drain foundation water along the sump pail location?

In my crawl space I dug out the perimeter to about 3 inches below the footings. I then laid rock and installed perforated drain with sock to keep out debris and laid rock on top. I dug a hole for the ...
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6answers
16k views

How can I thaw a frozen exterior drain quickly?

I have a driveway that is angled down slightly towards my house. About two feet before the garage there are two long drains that cover most of the drive way. Right now one is 100% frozen and the other ...
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1answer
41 views

Concrete patio slopes toward garage causing water seepage

As indicated in inspection report photo my concrete patio slopes toward the garage so when there’s heavy rain water seeps into the garage. Is installing a French drain the only way to fix this or is ...
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2answers
165 views

How can I waterproof a hole in my vinyl deck to fit a downspout?

I am wondering if anyone might have some suggestions on solving this drainage issue with our vinyl deck. We used to have 2 separate decks but upon rebuild we have them joined with a narrow walkway. ...
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0answers
35 views

What would “level with the driveway” mean exactly

Working on a big gravel patio project and already asked three questions here about it (1, 2, 3). Now, a third one, which may seem not so important, but if I make the wrong decision, it will be ...
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1answer
45 views

Should I build a segmental retaining wall on top of a grade beam with piles?

80 foot long retaining wall that ranges from 4 feet tall on one end to 12 feet tall on the other. I am planning on a segmental wall made of Versa-Lok "Bronco 18" blocks - 1200+ pounds each. ...
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0answers
17 views

How to run new exterior A/C drain line

I'm trying to replace my A/C drain pipe. It was draining into an old PVC pipe contraption that did nothing - water was leaking all over the brick and foundation. I pushed the PVC to the side and ...
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1answer
596 views

Drainage downhill under slab with block retaining wall

I would like to install an allan block retaining wall (3' at its highest). I'm going to build a shop 25' downhill from this retaining wall, and want to have a poured slab for parking vehicles on. In ...
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1answer
68 views

Can bushes help keep driveway and patio gravel stable?

My front yard has a U-shaped driveway on a significant slope. The arrows in the diagram below indicate the downward direction of the slope. From the bottom right to the top left, the elevation drops ...
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1answer
82 views

How to deal with backyard flooding?

So I am finally tired of walking through puddles to get to my garage. I am doing research to find out the best way to deal with my backyard flooding problem. I am in a townhouse with a small backyard ...
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1answer
45 views

Will using a flood guard on cellar drain cause excess storm water to go to upper floors?

Just recently has storm backwater flood my basement through the 2 floor drains. A few weeks ago when my neighbor was draining his backyard pool I noticed remnants of slight flooding, but last night ...
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3answers
100 views

How to trace corrugated drain pipe without digging up my whole yard?

I have a 6” corrugated drain pipe that my gutters on the back of my house drain into, and then the drain pipe runs underground along the side of my house. I’m not 100% sure where it ends. I’m looking ...
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0answers
27 views

Extend underground rainwater drain pipe down hill

I need to extend an underground drain pipe. The current pipe is underground a few inches and ends at the top of a hill that's a few feet tall. The hill is angled at (perhaps) 35 degrees. The current ...
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0answers
45 views

How to improve basement stairwell drainage?

So we have a basement walkout door. There is a stairwell that leads down to it. There’s a big landing but this is the drain in the middle of it. It has a tendency to get clogged with debris from trees ...

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