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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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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120 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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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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2k 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
4k 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
682 views

What are the difficulties in installing an in-floor drain in a laundry room?

I’m looking into a new construction home that lacks a floor drain in the laundry room. As I’m not a plumber, I’d like to understand how trivial or not trivial it is to add this, in case the builder ...
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246 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
227 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
174 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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2answers
34 views

Metal drainage grate, available off the shelf, or will need to have it custom made?

I need a metal drainage grate that will be at the foot of some stairs leading into a basement. Is this something I will need to specially order or have fabricated, or can it be bought standard? I did ...
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2answers
151 views

Exterior foundation drain pipe location relative to the footer

Our house—built in 1989 in the Kansas City, MO area—has a walk-out basement with exterior foundation drain pipes daylighted. The drain pipe on the east wall had a complete blockage, so I dug it up in ...
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1answer
338 views

What stops water from stagnating in a gutter drain line that has a pop-up emitter?

I'm planning on burying some rigid PVC pipe to attach guttering on my house to a few pop-up emitters like this: But the pop-up emitter makes a right angle UP, so doesn't that mean that basically ...
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1answer
216 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
48 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
147 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
56 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 ...
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2answers
372 views

How to seal interior aquaponic system?

I'm working on a aquaponic aquarium system that is part of the home improvement and I can't find proper part that would help me instal the drainage from the plant pot. I'm looking for some pvc pipe ...
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4answers
1k views

Do I really need a redundant sump pump? [closed]

So I'm getting my dirt basement encapsulated, and the contractor is installing an interior perimeter drain and sump pit/pump. They offer either a single good quality pump, a redundant system with just ...
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2answers
41 views

Pavers mortared to cement - how to grout joints

In my front yard I have a curved walkway made out of cement. The cement walkway is about 45 inches wide and sits on top of some compacted dirt. This past weekend I used some exterior thinset mortar (...
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1answer
63 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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3answers
347 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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1answer
58 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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2answers
932 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
101 views

What can I fill my deck beam trench with to prevent standing water?

I am in the process of building a multi level deck where the second level would be low to grade. As such, i had to dig some trenches (about 10-12" deep) as part of the beams will be below grade. ...
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2answers
44 views

Algae build up from pond is clogging sewer drain

A small pond about 100 feet across in my yard (located to the right in picture below) drains through the small path into a nearly non-grated sewer drain. In recent years, more and more algae has been ...
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1answer
171 views

Foundation flooding caused by new septic line

We've been living in our house for 10 years, and a few years after moving in our sewer line began backing up every 6 months or so. Each time, we'd have to pay a plumber to come in a "roto root" or ...
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1answer
34 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
231 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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1answer
1k 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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1answer
2k views

Correct drainage setup for a wall-mounted AC?

I have a wall-mounted AC unit. Specifically, a Fujitsu ASTG24LFCB. Recently water started leaking from the interior portion of the unit. I followed the instructions in this video to troubleshoot ...
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1answer
8k views

Can I “just” concrete over the existing gravel in this carport?

Based on this annotated image, can I reasonably pour concrete over the existing gravel in this carport area? If no, would it be enough to add another 1-2 inches of fresh gravel first? Some details. I'...
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2answers
2k views

Underground downspout pipe may be leaking

I have been getting more and more water in my basement in the last few years. Every time it snows and melts, water trickles in around one spot in the basement floor. I had someone come out to take a ...
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1answer
2k views

How to reroute this downspout?

I am looking for some suggestions on how to best reroute this downspout. Currently gravity is working it's magic and it is draining downhill following the blue arrow in the images. The water runs ...
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2answers
540 views

Does siphoning through a garden hose to a basement make sense?

I'd like to drain some rainwater sitting on an in-ground pool cover. I siphoned the first few inches quite easily with one end at the street level—which, luckily, is a little lower than both the front-...
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2answers
6k views

Clearing out blocked weeping tile

My basement floods when it rains, because the weeping tile can't drain. I'm trying to figure out how to fix it without tearing up my finished basement. The 1968 home has recently installed (2000?) ...
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1answer
1k views

Is it OK to drain sump water into a pond?

My current sump system drains into an area that has high traffic for various activities such as log splitting and brush clearing. This creates a very muddy mess. I want to relocate the sump drain pipe ...
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1answer
737 views

Air Conditioning Drain Pump

I am going to purchase Multi-Split air conditioning unit for my apartment that I am fully renovating at the moment. So it is the right time to make wholes in the walls etc. The supplier is giving an ...
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2answers
5k views

How to diagnose a greywater system backup

In recent weeks I have noticed that the drain pipe from the washing machine has been overflowing into the laundry room. We stopped using the washer thinking that we needed a plumber to come to the ...
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1answer
28 views

drain hose for chest freezer

I'm trying to build a DIY ice bath (Wim Hof style ice baths) using a chest freezer. I have a Magic Chef small size chest freezer (pic below). I need to drain the water in it every couple of months or ...
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1answer
63 views

How should I drain an area of gravel between a sidewalk and retaining wall?

We are reclaiming a flower bed and extending our existing patio. After a gully washer I am now concerned about drainage for this 5ft by 36ft impervious surface we are adding. We are also adding a ...
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1answer
142 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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1answer
70 views

Patching gap in drainage channel

Our property includes a dam with a storm overflow. I've discovered that the drainage channel, 50 years old, has started to slide apart, leaving a 2-3 inch gap in two places. When water drains, it ...
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1answer
143 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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2answers
2k views

ground level deck drainage suggestions?

I am Looking for ideas to keep water from pooling under a new ground-level deck. The frame in the photo was dug 8-10inches below the ground. I'm using composite decking so I need minimum 6 inches ...
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1answer
69 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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1answer
303 views

Is there too much gravel under this deck?

I had a contractor put a layer of gravel under my raised deck. The deck is about 4 feet off the ground and the space underneath it is enclosed. The ground under the deck was dirt with some landscape ...
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1answer
54 views

Should this retaining wall have drainage

Should the wall in the picture below have better drainage (e.g. perforated pipes)? And, if yes, is it possible to add them at this point? The walkway above has the same slate top you see at the very ...
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1answer
123 views

Should I be worried about the weight of french drain gravel on my foundation?

Should I be concerned about the added weight of 3/4" river rock in a french drain 12 inches from my foundation? If there is already a crack in the foundation and a slight lean, will the weight of the ...
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1answer
83 views

Is a 7 degree slope for a roof too small in a rainy area?

I want to build a car port off my house. Due to window placement the highest part of the roof could only be 10 feet above ground. It will extend out 16 feet. If I want the low point of the roof to be ...
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2answers
66 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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